Middle Ages Information
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.
Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in Late Antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Eastern Roman (or Byzantine) Empire—came under the rule of the Umayyad Caliphate, an Islamic empire, after conquest by Muhammad's successors. Although there were substantial changes in society and political structures, the break with classical antiquity was not complete. The still-sizeable Byzantine Empire, Rome's direct continuation, survived in the Eastern Mediterranean and remained a major power. Secular law was advanced greatly by the Code of Justinian. In the West, most kingdoms incorporated extant Roman institutions, while new bishoprics and monasteries were founded as Christianity expanded in Europe. The Franks, under the Carolingian dynasty, briefly established the Carolingian Empire during the later 8th and early 9th centuries. It covered much of Western Europe but later succumbed to the pressures of internal civil wars combined with external invasions: Vikings from the north, Magyars from the east, and Saracens from the south.
During the High Middle Ages, which began after 1000, the population of Europe increased greatly as technological and agricultural innovations allowed trade to flourish and the Medieval Warm Period climate change allowed crop yields to increase. Manorialism, the organisation of peasants into villages that owed rent and labour services to the nobles, and feudalism, the political structure whereby knights and lower-status nobles owed military service to their overlords in return for the right to rent from lands and manors, were two of the ways society was organised in the High Middle Ages. This period also saw the formal division of the Catholic and Orthodox churches, with the East–West Schism of 1054. The Crusades, which began in 1095, were military attempts by Western European Christians to regain control of the Holy Land from Muslims, and also contributed to the expansion of Latin Christendom in the Baltic region and the Iberian Peninsula. Kings became the heads of centralised nation-states, reducing crime and violence but making the ideal of a unified Christendom more distant. In the West, intellectual life was marked by scholasticism, a philosophy that emphasised joining faith to reason, and by the founding of universities. The theology of Thomas Aquinas, the paintings of Giotto, the poetry of Dante and Chaucer, the travels of Marco Polo, and the Gothic architecture of cathedrals such as Chartres mark the end of this period.
The Late Middle Ages was marked by difficulties and calamities including famine, plague, and war, which significantly diminished the population of Europe; between 1347 and 1350, the Black Death killed about a third of Europeans. Controversy, heresy, and the Western Schism within the Catholic Church paralleled the interstate conflict, civil strife, and peasant revolts that occurred in the kingdoms. Cultural and technological developments transformed European society, concluding the Late Middle Ages and beginning the early modern period.
Terminology and periodisation
The Middle Ages is one of the three major periods in the most enduring scheme for analysing European history: classical civilisation or Antiquity, the Middle Ages and the Modern Period.  The "Middle Ages" first appears in Latin in 1469 as media tempestas or "middle season".  In early usage, there were many variants, including medium aevum, or "middle age", first recorded in 1604,  and media saecula, or "middle centuries", first recorded in 1625.  The adjective "medieval" (or sometimes "mediaeval"  or "mediæval"),  meaning pertaining to the Middle Ages, derives from medium aevum. 
Medieval writers divided history into periods such as the " Six Ages" or the " Four Empires", and considered their time to be the last before the end of the world.  When referring to their own times, they spoke of them as being "modern".  In the 1330s,[ dubious ] the Italian humanist and poet Petrarch referred to pre-Christian times as antiqua (or "ancient") and to the Christian period as nova (or "new").  Petrarch regarded the post-Roman centuries as " dark" compared to the "light" of classical antiquity. [ failed verification] Leonardo Bruni was the first historian to use tripartite periodisation in his History of the Florentine People (1442), with a middle period "between the fall of the Roman Empire and the revival of city life sometime in late eleventh and twelfth centuries". [ non-primary source needed] Tripartite periodisation became standard after the 17th-century German historian Christoph Cellarius divided history into three periods: ancient, medieval, and modern. 
The most commonly given starting point for the Middle Ages is around 500,  with the date of 476 first used by Bruni. [ non-primary source needed] [A] Later starting dates are sometimes used in the outer parts of Europe.  For Europe as a whole, 1500 is often considered to be the end of the Middle Ages,  but there is no universally agreed upon end date. Depending on the context, events such as the conquest of Constantinople by the Turks in 1453, Christopher Columbus's first voyage to the Americas in 1492, or the Protestant Reformation in 1517 are sometimes used.  English historians often use the Battle of Bosworth Field in 1485 to mark the end of the period.  For Spain, dates commonly used are the death of King Ferdinand II in 1516, the death of Queen Isabella I of Castile in 1504, or the conquest of Granada in 1492. 
Historians from Romance-speaking countries tend to divide the Middle Ages into two parts: an earlier "High" and later "Low" period. English-speaking historians, following their German counterparts, generally subdivide the Middle Ages into three intervals: "Early", "High", and "Late".  In the 19th century, the entire Middle Ages were often referred to as the " Dark Ages",  but with the adoption of these subdivisions, use of this term was restricted to the Early Middle Ages, at least among historians. [ failed verification]
Later Roman Empire
The Roman Empire reached its greatest territorial extent during the 2nd century AD; the following two centuries witnessed the slow decline of Roman control over its outlying territories.  Runaway inflation, external pressure on the frontiers, and outbreaks of plague combined to create the Crisis of the Third Century, with emperors coming to the throne only to be rapidly replaced by new usurpers.  Military expenses increased steadily during the 3rd century, mainly in response to the war with the newly established Sasanian Empire in the middle of the 3rd century.  The army doubled in size, and cavalry and smaller units replaced the Roman legion as the main tactical unit.  The need for revenue led to increased taxes and a decline in numbers of the curial, or landowning, class, and decreasing numbers of them willing to shoulder the burdens of holding office in their native towns.  More bureaucrats were needed in the central administration to deal with the needs of the army, which led to complaints from civilians that there were more tax-collectors in the empire than tax-payers. 
The Emperor Diocletian (r. 284–305) split the empire into separately administered eastern and western halves in 286. This system, which eventually encompassed two senior co-emperors and two junior co-emperors (hence known as the Tetrarchy) stabilised the imperial government for about two decades. Diocletian's further reforms strengthened the governmental bureaucracy, reformed taxation, and strengthened the army, which bought the empire time but did not resolve the problems it was facing: excessive taxation, a declining birthrate, and pressures on its frontiers, among others.   In 330, after a period of civil war, Constantine the Great (r. 306–337) refounded the city of Byzantium as the newly renamed eastern capital, Constantinople.  For much of the 4th century, Roman society stabilised in a new form that differed from the earlier classical period, with a widening gulf between the rich and poor, and a decline in the vitality of the smaller towns.  Another change was the Christianisation, or conversion of the empire to Christianity. The process was stimulated by the 3rd-century crisis, accelerated by the conversion of Constantine the Great, and by the end of the century Christianity emerged as the empire's dominant religion.  Debates about Christian theology, customs and ethics intensified. Mainstream Christianity developed under imperial patronage, and those who persisted with theological views condemned at the Church leaders' general assemblies had to endure official persecution. Heretic views could survive by popular support, or through intensive proselytizing activities. Examples include the uncompromisingly Monophysite Syrians and Egyptians, and the spread of Arianism among the Germanic peoples.  
Civil war between rival emperors became common in the middle of the 4th century, diverting soldiers from the empire's frontier forces and allowing invaders to encroach.  Although the movements of peoples during this period are usually described as "invasions", they were not just military expeditions but migrations of entire peoples into the empire.  In 376, the Goths, fleeing from the Huns, received permission from Emperor Valens (r. 364–378) to settle in Roman territory in the Balkans. The settlement did not go smoothly, and when Roman officials mishandled the situation, the Goths began to raid and plunder. [B] Valens, attempting to put down the disorder, was killed fighting the Goths at the Battle of Adrianople on 9 August 378.  In 401, the Visigoths, a Gothic group, invaded the Western Roman Empire and, although briefly forced back from Italy, in 410 sacked the city of Rome.  In 406 the Alans, Vandals, and Suevi crossed into Gaul; over the next three years they spread across Gaul and in 409 crossed the Pyrenees Mountains into modern-day Spain.  The Franks, Alemanni, and the Burgundians all ended up in Gaul while the Angles, Saxons, and Jutes settled in Britain,  and the Vandals went on to cross the strait of Gibraltar after which they conquered the province of Africa.  The Hunnic king Attila (r. 434–453) led invasions into the Balkans in 442 and 447, Gaul in 451, and Italy in 452. The Hunnic threat remained until Attila's death in 453, when the Hunnic confederation he led fell apart. 
When dealing with the migrations, the eastern and western elites applied different methods. The Eastern Romans combined the deployment of armed forces with gifts and grants of offices to the tribal leaders. The Western aristocrats failed to support the army but refused to pay tribute to prevent invasions by the tribes.  These invasions completely changed the political and demographic nature of the western section of the empire.  By the end of the 5th century it was divided into smaller political units, ruled by the tribes that had invaded in the early part of the century.  The deposition of the last emperor of the west, Romulus Augustulus, in 476 has traditionally marked the end of the Western Roman Empire.  [C] The Eastern Roman Empire, often referred to as the Byzantine Empire after the fall of its western counterpart, had little ability to assert control over the lost western territories. The Byzantine emperors maintained a claim over the territory, but while none of the new kings in the west dared to elevate himself to the position of emperor of the west, Byzantine control of most of the Western Empire could not be sustained. 
Early Middle Ages
The emperors of the 5th century were often controlled by military strongmen such as Stilicho (d. 408), Aetius (d. 454), Aspar (d. 471), Ricimer (d. 472), or Gundobad (d. 516), who were partly or fully of non-Roman ancestry.  In the post-Roman world ethnic identities were flexible, often determined by loyalty to a successful military leader or by religion instead of ancestry or language. Ethnic markers quickly changed—by around 500, Arianism, originally a genuine Roman heresy, was associated with Germanic peoples, and the Goths rarely used their Germanic language outside their churches. The fusion of Roman culture with the customs of the invading tribes is well documented. Popular assemblies that allowed free male tribal members more say in political matters than had been common in the Roman state developed into legislative and judicial bodies.  Material artefacts left by the Romans and the invaders are often similar, and tribal items were often modelled on Roman objects.  Much of the scholarly and written culture of the new kingdoms was also based on Roman intellectual traditions.  An important difference was the gradual loss of tax revenue by the new polities. Many of the new political entities no longer supported their armies through taxes, instead relying on granting them land or rents. This meant there was less need for large tax revenues and so the taxation systems decayed. 
Among the new peoples filling the political void left by Roman centralised government, the Ostrogoths, a Gothic tribe settled in Italy in the late 5th century under Theoderic the Great (r. 493–526). He set up a kingdom marked by its co-operation between the Italians and the Ostrogoths, at least until the last years of his reign. Power struggles between Romanized and traditionalist Ostrogothic groups followed his death, providing the opportunity for the Byzantines to reconquer Italy in the middle of 6th century.  The Burgundians settled in Gaul, and after an earlier realm was destroyed by the Huns in 436, formed a new kingdom in the 440s. Between today's Geneva and Lyon, it grew to become the realm of Burgundy in the late 5th and early 6th centuries.  Elsewhere in Gaul, the Franks and Celtic Britons set up stable polities. Francia was centred in northern Gaul, and the first king of whom much is known is Childeric I (d. 481). [D]  Under Childeric's son Clovis I (r. 509–511), the founder of the Merovingian dynasty, the Frankish kingdom expanded and converted to Christianity. Britons fleeing from Britannia – modern-day Great Britain – settled in what is now Brittany. [E] 
Other monarchies were established by the Visigoths in the Iberian Peninsula, the Suebi in northwestern Iberia, and the Vandals in North Africa.  The Lombards settled in Pannonia, but the influx of the nomadic Avars from the Asian steppes to Central Europe forced them to move on to Northern Italy in 568. Here they conquered the lands once held by the Ostrogoths from the Byzantines, and established a new kingdom composed of town-based duchies.  By the end of the 6th century, the Avars conquered most Slavic, Turkic and Germanic tribes in the lowlands along the Lower and Middle Danube, and they were routinely able to force the Eastern emperors to pay tribute.  Around 670, another steppe people, the Bulgars settled at the Danube Delta. In 681, they defeated a Byzantine imperial army, and established a new empire on the Lower Danube, subjugating the local Slavic tribes. 
During the invasions, some regions received a larger influx of new peoples than others. In Gaul for instance, the invaders settled much more extensively in the north-east than in the south-west. Slavs settled in Central and Eastern Europe and the Balkan Peninsula. The settlement of peoples was accompanied by changes in languages. Latin, the literary language of the Western Roman Empire, was gradually replaced by vernacular languages which evolved from Latin, but were distinct from it, collectively known as Romance languages. These changes from Latin to the new languages took many centuries. Greek remained the language of the Byzantine Empire, but the migrations of the Slavs expanded the area of Slavic languages in Eastern Europe. 
As Western Europe witnessed the formation of new kingdoms, the Eastern Roman Empire remained intact and experienced an economic revival that lasted into the early 7th century. There were fewer invasions of the eastern section of the empire; most occurred in the Balkans. Peace with the Sasanian Empire, the traditional enemy of Rome, lasted throughout most of the 5th century. The Eastern Empire was marked by closer relations between the political state and Christian Church, with doctrinal matters assuming an importance in Eastern politics that they did not have in Western Europe. Legal developments included the codification of Roman law; the first effort—the Codex Theodosianus—was completed in 438.  Under Emperor Justinian (r. 527–565), another compilation took place—the Corpus Juris Civilis. 
Justinian oversaw the construction of the Hagia Sophia in Constantinople and the reconquest of North Africa from the Vandals and Italy from the Ostrogoths,  under Belisarius (d. 565).  The conquest of Italy was not complete, as a deadly outbreak of plague in 542 led to the rest of Justinian's reign concentrating on defensive measures rather than further conquests.[ dubious ]  At the Emperor's death, the Byzantines had control of most of Italy, North Africa, and a small foothold in southern Spain. Justinian's reconquests and excessive building program have been criticised by historians for bringing his realm to the brink of bankruptcy, but many of the difficulties faced by Justinian's successors were likely due to other factors, including the plague. 
In the Eastern Empire the slow infiltration of the Balkans by the Slavs added a further difficulty for Justinian's successors. It began gradually, but by the late 540s Slavic tribes were in Thrace and Illyrium, and had defeated an imperial army near Adrianople in 551.  An additional problem to face the empire came as a result of the involvement of Emperor Maurice (r. 582–602) in Persian politics when he intervened in a succession dispute. This led to a period of peace, but when Maurice was overthrown, the Persians invaded and during the reign of Emperor Heraclius (r. 610–641) controlled large chunks of the empire, including Egypt, Syria, and Anatolia until Heraclius' successful counterattack. In 628 the empire secured a peace treaty and recovered all of its lost territories. 
In Western Europe, some of the older Roman elite families died out while others became more involved with ecclesiastical than secular affairs. Values attached to Latin scholarship and education mostly disappeared, and while literacy remained important, it became a practical skill rather than a sign of elite status. In the 4th century, Jerome (d. 420) dreamed that God rebuked him for spending more time reading Cicero than the Bible. By the 6th century, Gregory of Tours (d. 594) had a similar dream, but instead of being chastised for reading Cicero, he was chastised for learning shorthand.  By the late 6th century, the principal means of religious instruction in the Church had become music and art rather than the book.  Most intellectual efforts went towards imitating classical scholarship, but some original works were created, along with now-lost oral compositions. The writings of Sidonius Apollinaris (d. 489), Cassiodorus (d. c. 585), and Boethius (d. c. 525) were typical of the age. 
Changes also took place among laymen, as aristocratic culture focused on great feasts held in halls rather than on literary pursuits. Clothing for the elites was richly embellished with jewels and gold. Lords and kings supported entourages of fighters who formed the backbone of the military forces. [F] Family ties within the elites were important, as were the virtues of loyalty, courage, and honour. These ties led to the prevalence of the feud in aristocratic society, examples of which included those related by Gregory of Tours that took place in Merovingian Gaul. Most feuds seem to have ended quickly with the payment of some sort of compensation.  Women took part in aristocratic society mainly in their roles as wives and mothers of men, with the role of mother of a ruler being especially prominent in Merovingian Gaul. In Anglo-Saxon society the lack of many child rulers meant a lesser role for women as queen mothers, but this was compensated for by the increased role played by abbesses of monasteries. Only in Italy does it appear that women were always considered under the protection and control of a male relative. 
Peasant society is much less documented than the nobility. Most of the surviving information available to historians comes from archaeology; few detailed written records documenting peasant life remain from before the 9th century. Most of the descriptions of the lower classes come from either law codes or writers from the upper classes.  Landholding patterns in the West were not uniform; some areas had greatly fragmented landholding patterns, but in other areas large contiguous blocks of land were the norm. These differences allowed for a wide variety of peasant societies, some dominated by aristocratic landholders and others having a great deal of autonomy.  Land settlement also varied greatly. Some peasants lived in large settlements that numbered as many as 700 inhabitants. Others lived in small groups of a few families and still others lived on isolated farms spread over the countryside. There were also areas where the pattern was a mix of two or more of those systems.  Unlike in the late Roman period, there was no sharp break between the legal status of the free peasant and the aristocrat, and it was possible for a free peasant's family to rise into the aristocracy over several generations through military service to a powerful lord.  Christian ethics brought about significant changes in the position of slaves in the 7th and 8th centuries. They were no more regarded as their lords' property, and their right to a decent treatment was enacted.  [G]
Roman city life and culture changed greatly in the early Middle Ages. Although Italian cities remained inhabited, they contracted significantly in size. Rome, for instance, shrank from a population of hundreds of thousands to around 30,000 by the end of the 6th century. Roman temples were converted into Christian churches and city walls remained in use.  In Northern Europe, cities also shrank, while civic monuments and other public buildings were raided for building materials. The establishment of new kingdoms often meant some growth for the towns chosen as capitals.  Although there had been Jewish communities in many Roman cities, the Jews suffered periods of persecution after the conversion of the empire to Christianity. Officially they were tolerated, if subject to conversion efforts, and at times were even encouraged to settle in new areas. 
Rise of Islam
Religious beliefs were in flux in the lands along the Eastern Roman and Persian frontiers during the late 6th and early 7th centuries. State-sponsored Christian missionaries proselytised among the pagan steppe peoples, and the Persians made attempts to enforce their Zoroastrianism on the Christian Armenians. Judaism was an active proselytising faith, and at least one Arab political leader converted to it. [H]  The emergence of Islam in Arabia during the lifetime of Muhammad (d. 632) brought about more radical changes. After his death, Islamic forces conquered much of the Near East, starting with Syria in 634–35, continuing with Persia between 637 and 642, and reaching Egypt in 640–41. In the eastern Mediterranean, the Muslim expansion was halted at Constantinople. The Eastern Romans used the Greek Fire, a highly combustible liquid, to defend their capital in 674–78 and 717–18. In the west, the advance of Islamic troops continued. They conquered North Africa by the early 8th century, annihilated the Visigothic Kingdom in 711, and invaded southern France in 713–25.  
The Muslim conquerors bypassed the mountainous northwestern region of the Iberian Peninsula. Here a small kingdom, Asturias emerged as the centre of local resistance.  The defeat of Muslim forces at the Battle of Tours in 732 led to the reconquest of southern France by the Franks, but the main reason for the halt of Islamic growth in Europe was the overthrow of the Umayyad Caliphate and its replacement by the Abbasid Caliphate. The Abbasids moved their capital to Baghdad and were more concerned with the Middle East than Europe, losing control of sections of the Muslim lands. Umayyad descendants took over Al-Andalus (or Muslim Spain), the Aghlabids controlled North Africa, and the Tulunids became rulers of Egypt. 
Trade and economy
The migrations and invasions of the 4th and 5th centuries disrupted trade networks around the Mediterranean. African goods stopped being imported into Europe, first disappearing from the interior and by the 7th century found only in a few cities such as Rome or Naples. By the end of the 7th century, under the impact of the Muslim conquests, African products were no longer found in Western Europe. The replacement of goods from long-range trade with local products was a trend throughout the old Roman lands that happened in the Early Middle Ages. This was especially marked in the lands that did not lie on the Mediterranean, such as northern Gaul or Britain. Non-local goods appearing in the archaeological record are usually luxury goods or metalworks.  In the 7th and 8th centuries, new commercial networks were developing in northern Europe. Goods like furs, walrus ivory and amber were delivered from the Baltic region to western Europe, contributing to the development of new trade centers in East Anglia, northern Francia and Scandinavia. Conflicts over the control of trade routes and toll stations were common, and those who failed turned to raiding or settled in foreign lands. 
The flourishing Islamic economies' constant demand for fresh labour force and raw materials opened up a new market for Europe around 750. Europe emerged as a major supplier of house slaves and slave soldiers for Al-Andalus, northern Africa and the Levant. Venice developed into the most important European center of slave trade at the mouth of the river Po.   In addition, timber, fur and arms were delivered from Europe to the Mediterranean, while Europe imported spices, medicine, incense, and silk from the Levant.  The demand for exotic merchandise was reinforced primarily by internal factors, like population growth, and improved agricultural productivity. The large rivers connecting distant regions facilitated the expansion of transcontinental trade.  Contemporaneous reports indicate that Anglo-Saxon merchants visited fairs at Paris, pirates preyed on tradesman travelling on the Danube, and Eastern Frankish merchants reached as far as Zaragoza in Al-Andalus. 
The various Germanic states in the west all had coinages that imitated existing Roman and Byzantine forms. Gold continued to be minted until the end of the 7th century in 693-94 when it was replaced by silver in the Merovingian kingdom. The basic Frankish silver coin was the denarius or denier, while the Anglo-Saxon version was called a penny. From these areas, the denier or penny spread throughout Europe from 700 to 1000 AD. Copper or bronze coins were not struck, nor were gold except in Southern Europe. No silver coins denominated in multiple units were minted. 
Church and monasticism
Christianity was a major unifying factor between Eastern and Western Europe before the Arab conquests, but the conquest of North Africa sundered maritime connections between those areas. Increasingly, the Byzantine Church differed in language, practices, and liturgy from the Western Church. The Eastern Church used Greek instead of the Western Latin. Theological and political differences emerged, and by the early and middle 8th century issues such as iconoclasm, clerical marriage, and state control of the Church had widened to the extent that the cultural and religious differences were greater than the similarities.  The formal break, known as the East–West Schism, came in 1054, when the papacy and the patriarchy of Constantinople clashed over papal supremacy and excommunicated each other, which led to the division of Christianity into two Churches—the Western branch became the Roman Catholic Church and the Eastern branch the Eastern Orthodox Church. 
The ecclesiastical structure of the Roman Empire survived the movements and invasions in the west mostly intact, but the papacy was little regarded, and few of the Western bishops looked to the bishop of Rome for religious or political leadership. Many of the popes prior to 750 were more concerned with Byzantine affairs and Eastern theological controversies. The register, or archived copies of the letters, of Pope Gregory the Great (pope 590–604) survived, and of those more than 850 letters, the vast majority were concerned with affairs in Italy or Constantinople. The only part of Western Europe where the papacy had influence was Britain, where Gregory had sent the Gregorian mission in 597 to convert the Anglo-Saxons to Christianity.  Irish missionaries were most active in Western Europe between the 5th and the 7th centuries, going first to England and Scotland and then on to the continent. Under such monks as Columba (d. 597) and Columbanus (d. 615), they founded monasteries, taught in Latin and Greek, and authored secular and religious works. 
The Early Middle Ages witnessed the rise of Christian monasticism. The shape of European monasticism was determined by traditions and ideas that originated with the Desert Fathers of Egypt. Monastic ideals spread through hagiographical literature such as the Life of Anthony. Most European monasteries were of the type that focuses on community experience of the spiritual life, called cenobitism, which was pioneered by the Egyptian hermit Pachomius (d. c. 350).   Bishop Basil of Caesarea (d. 379) wrote a monastic rule for a community of Cappadocian ascetics which served as a highly esteemed template for similar regulations in the Mediterranean. These mainly covered the spiritual aspects of monasticism. In contrast, the Italian monk Benedict of Nursia (d. 547) adopted a more practical approach, regulating both the administrative and spiritual responsibilities of a community of monks led by an abbot. The Benedictine Rule became widely used in western monasteries already before it was decreed the norm for Frankish monastic communities in 817.   In the east, the monastic rules compiled by Theodore the Studite (d. 826) gained popularity after they were adopted in the Great Lavra, a newly established imperial monastery on Mount Athos in the 960s. The Great Lavra set a precedent for the founding of further Athonite monasteries, turning the mount into the most important centre of Orthodox monasticism. 
Monks and monasteries had a deep effect on the religious and political life of the Early Middle Ages, in various cases acting as land trusts for powerful families, centres of propaganda and royal support in newly conquered regions, and bases for missions and proselytisation.  They were the main and sometimes only outposts of education and literacy in a region. Many of the surviving manuscripts of the Latin classics were copied in monasteries in the Early Middle Ages.  Monks were also the authors of new works, including history, theology, and other subjects, written by authors such as Bede (d. 735), a native of northern England.  The Byzantine missionary Constantine (d. 869) developed Old Church Slavonic as a new liturgical language enriching Slavic vocabulary with Greek religious terms. He also created an alphabet, likely the Glagolitic script, for it. These innovations established the basis for a flourishing Slavic religious literature. [I] 
The Frankish kingdom in northern Gaul split into kingdoms called Austrasia, Neustria, and Burgundy during the 6th and 7th centuries, all of them ruled by the Merovingian dynasty, who were descended from Clovis. The 7th century was a tumultuous period of wars between Austrasia and Neustria.  Such warfare was exploited by Pippin (d. 640), the Mayor of the Palace for Austrasia who became the power behind the Austrasian throne. Later members of his family inherited the office, acting as advisers and regents. One of his descendants, Charles Martel (d. 741), won the Battle of Poitiers in 732, halting the advance of Muslim armies across the Pyrenees.  Great Britain was divided into small states dominated by the kingdoms of Northumbria, Mercia, Wessex, and East Anglia which descended from the Anglo-Saxon invaders. Smaller kingdoms in present-day Wales and Scotland were still under the control of the native Britons and Picts.  Ireland was divided into even smaller political units, usually known as tribal kingdoms, under the control of kings. There were perhaps as many as 150 local kings in Ireland, of varying importance. 
The Carolingian dynasty, as the successors to Charles Martel are known, officially took control of the kingdoms of Austrasia and Neustria in a coup of 753 led by Pippin III (r. 752–768). A contemporary chronicle claims that Pippin sought, and gained, authority for this coup from Pope Stephen II (pope 752–757). Pippin's takeover was reinforced with propaganda that portrayed the Merovingians as inept or cruel rulers, exalted the accomplishments of Charles Martel, and circulated stories of the family's great piety. At the time of his death in 768, Pippin left his kingdom in the hands of his two sons, Charles (r. 768–814) and Carloman (r. 768–771). When Carloman died of natural causes, Charles blocked the succession of Carloman's young son and installed himself as the king of the united Austrasia and Neustria. Charles, more often known as Charles the Great or Charlemagne, embarked upon a programme of systematic expansion in 774 that unified a large portion of Europe, eventually controlling modern-day France, northern Italy, and Saxony. In the wars that lasted beyond 800, he rewarded allies with war booty and command over parcels of land.  In 774, Charlemagne conquered the Lombards, which freed the papacy from the fear of Lombard conquest and marked the beginnings of the Papal States.  [J] The Avars were forced into submission between 791 and 803. Their empire's fall facilitated the development of small Slavic principalities, mainly ruled by ambitious warlords under Frankish suzerainty.  [K]
The coronation of Charlemagne as emperor on Christmas Day 800 is regarded as a turning point in medieval history, marking a return of the Western Roman Empire, since the new emperor ruled over much of the area previously controlled by the Western emperors. It also marks a change in Charlemagne's relationship with the Byzantine Empire, as the assumption of the imperial title by the Carolingians asserted their equivalence to the Byzantine state. In 812, as a result of careful and protracted negotiations, the Byzantines acknowledged Charlemagne's title of "emperor" but without recognizing him as a second "emperor of the Romans", or accepting his successors' claim to use his new title.  The Frankish lands were rural in character, with only a few small cities. Most of the people were peasants settled on small farms. Little trade existed and much of that was with the British Isles and Scandinavia, in contrast to the older Roman Empire with its trading networks centred on the Mediterranean.  The empire was administered by an itinerant court that travelled with the emperor, as well as approximately 300 imperial officials called counts, who administered the counties the empire had been divided into.  The central administration supervised the counts through imperial emissaries called missi dominici, who served as roving inspectors and troubleshooters. The clerics of the royal chapel were responsible for recording important royal grants and decisions. 
Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the " Carolingian Renaissance". Literacy increased, as did development in the arts, architecture and jurisprudence, as well as liturgical and scriptural studies. The English monk Alcuin (d. 804) was invited to Aachen and brought the education available in the monasteries of Northumbria. Charlemagne's chancery—or writing office—made use of a new script today known as Carolingian minuscule, [L] allowing a common writing style that advanced communication across much of Europe. Charlemagne sponsored changes in church liturgy, imposing the Roman form of church service on his domains, as well as the Gregorian chant in liturgical music for the churches. An important activity for scholars during this period was the copying, correcting, and dissemination of basic works on religious and secular topics, with the aim of encouraging learning. New works on religious topics and schoolbooks were also produced.  Grammarians of the period modified the Latin language, changing it from the Classical Latin of the Roman Empire into a more flexible form to fit the needs of the Church and government. By the reign of Charlemagne, the language had so diverged from the classical Latin that it was later called Medieval Latin. 
Breakup of the Carolingian Empire
Charlemagne planned to continue the Frankish tradition of dividing his kingdom between all his heirs, but was unable to do so as only one son, Louis the Pious (r. 814–840), was still alive by 813. Just before Charlemagne died in 814, he crowned Louis as his successor. Louis's reign of 26 years was marked by numerous divisions of the empire among his sons and, after 829, civil wars between various alliances of father and sons over the control of various parts of the empire. Eventually, Louis recognised his eldest son Lothair I (d. 855) as emperor and gave him the Kingdom of Italy. Louis divided the rest of the empire between Lothair and Charles the Bald (d. 877), his youngest son. Lothair took East Francia, comprising both banks of the Rhine and eastwards, leaving Charles West Francia with the empire to the west of the Rhineland and the Alps. Louis the German (d. 876), the middle child, who had been rebellious to the last, was allowed to keep Bavaria under the suzerainty of his elder brother. The division was disputed. Pepin II of Aquitaine (d. after 864), the emperor's grandson, rebelled in a contest for Aquitaine, while Louis the German tried to annex all of East Francia. Louis the Pious died in 840, with the empire still in chaos. 
A three-year civil war followed his death. By the Treaty of Verdun (843), a kingdom between the Rhine and Rhone rivers was created for Lothair to go with his lands in Italy, and his imperial title was recognised. Louis the German was in control of Bavaria and the eastern lands in modern-day Germany. Charles the Bald received the western Frankish lands, comprising most of modern-day France.  Charlemagne's grandsons and great-grandsons divided their kingdoms between their descendants, eventually causing all internal cohesion to be lost.  [M] In 987 the Carolingian dynasty was replaced in the western lands, with the crowning of Hugh Capet (r. 987–996) as king. [N] [O] In the eastern lands the dynasty had died out earlier, in 911, with the death of Louis the Child,  and the selection of the unrelated Conrad I (r. 911–918) as king. 
The breakup of the Carolingian Empire was accompanied by invasions, migrations, and raids by external foes. The Atlantic and northern shores were harassed by the Vikings, who also raided the British Isles and settled there as well as in Iceland. In 911, the Viking chieftain Rollo (d. c. 931) received permission from the Frankish King Charles the Simple (r. 898–922) to settle in what became Normandy. This settlement eventually expanded and Normans spread to southern Italy, then Sicily and England.   The eastern parts of the Frankish kingdoms, especially Germany and Italy, were under continual Magyar assault until the invader's defeat at the Battle of Lechfeld in 955.  The breakup of the Abbasid dynasty meant that the Islamic world fragmented into smaller political states, some of which began expanding. The Aghlabids conquered Sicily, the Ummayads of Al-Andalus annexed the Balearic Islands, and Arab pirates launched regular raids against Italy and southern France. 
New kingdoms and Byzantine revival
Efforts by local kings to fight the invaders led to the formation of new political entities. In Anglo-Saxon England, King Alfred the Great (r. 871–899) came to an agreement with the Viking invaders in the late 9th century, resulting in Danish settlements in Northumbria, Mercia, and parts of East Anglia.  By the middle of the 10th century, Alfred's successors had conquered Northumbria, and restored English control over most of the southern part of Great Britain.  In northern Britain, Kenneth MacAlpin (d. c. 860) united the Picts and the Scots into the Kingdom of Alba.  In the early 10th century, the Ottonian dynasty established itself in Germany, and was engaged in driving back the Magyars. Its efforts culminated in the coronation in 962 of Otto I (r. 936–973) as Holy Roman Emperor. In the mid-10th century Italy was drawn into the Ottonian sphere but the absent German kings could not consolidate royal authority in the Italian realm.  The western Frankish kingdom was more fragmented, and although kings remained nominally in charge, much of the political power devolved to the local lords.  In the Iberian Peninsula, Asturias expanded slowly south in the 8th and 9th centuries, and continued as the Kingdom of León when the royal centre was moved from the northern Oviedo to León in the 910s. 
Missionary efforts to Scandinavia during the 9th and 10th centuries helped strengthen the growth of kingdoms such as Sweden, Denmark, and Norway, which gained power and territory. Some kings converted to Christianity, although not all by 1000. Scandinavians also expanded and colonised throughout Europe. Besides the settlements in Ireland, England, and Normandy, further settlement took place in what became Russia and Iceland. Swedish traders and raiders ranged down the rivers of the Russian steppe, and even attempted to seize Constantinople in 860 and 907.  The Eastern European trade routes towards Central Asia and the Near East were controlled by the Khazars. Their multiethnic empire resisted the Muslim expansion, and the Khazar leaders converted to Judaism by the 830s. The Khazars were nominally ruled by a sacred king, the khagan, but the commander-in-chief of his army, the beg, was the power behind the throne. 
Byzantium revived its fortunes under Emperor Basil I (r. 867–886) and his successors Leo VI (r. 886–912) and Constantine VII (r. 913–959), members of the Macedonian dynasty. Commerce revived and the emperors oversaw the extension of a uniform administration to all the provinces. The military was reorganised, which allowed the emperors John I (r. 969–976) and Basil II (r. 976–1025) to expand the frontiers of the empire on all fronts. The imperial court was the centre of a revival of classical learning, a process known as the Macedonian Renaissance. Writers such as John Geometres ( fl. early 10th century) composed new hymns, poems, and other works.  Missionary efforts by both Eastern and Western clergy resulted in the conversion of the Moravians, Bulgars, Bohemians, Poles, Magyars, and Slavic[ failed verification] inhabitants of the Kievan Rus'. These conversions contributed to the founding of political states in the lands of those peoples—the states of Moravia, Bulgaria, Bohemia, Poland, Hungary, and the Kievan Rus'. [ failed verification] Bulgaria, which was founded at the Danube Delta around 680, at its height incorporated vast regions along the Lower Danube, in the Balkans and the Carpathian Basin. By 1018, the last Bulgarian nobles had surrendered to the Byzantine Empire. 
Art and architecture
After the Edict of Milan legalized Christianity and Judaism in the Roman Empire, new public places of worship emerged.  Basilicas, large halls that originally served administrative functions, were adapted for Christian worship under Constantine the Great.  During his successors' reign, new basilicas were built in the major cities of the Roman world, and even in the post-Roman tribal kingdoms until the mid-6th century. [P] As the spacious basilicas became of little use with the decline of urban centres, they gave way to smaller churches, mainly divided into little chambers. By the beginning of the 8th century, the Carolingian Empire revived the basilica form of architecture.  One feature of the basilica is the use of a transept,  or the "arms" of a cross-shaped building that are perpendicular to the long nave.  Other new features of religious architecture include the crossing tower and a monumental entrance to the church, usually at the west end of the building. 
Carolingian art was produced for a small group of figures around the court, and the monasteries and churches they supported. It was dominated by efforts to regain the dignity and classicism of imperial Roman and Byzantine art, but was also influenced by the Insular art of the British Isles. Insular art integrated the energy of Irish Celtic and Anglo-Saxon Germanic styles of ornament with Mediterranean forms such as the book, and established many characteristics of art for the rest of the medieval period. Surviving religious works from the Early Middle Ages are mostly illuminated manuscripts and carved ivories, originally made for metalwork that has since been melted down.   Objects in precious metals were the most prestigious form of art, but almost all are lost except for a few crosses such as the Cross of Lothair, several reliquaries, and finds such as the Anglo-Saxon burial at Sutton Hoo and the hoards of Gourdon from Merovingian France, Guarrazar from Visigothic Spain and Nagyszentmiklós near Byzantine territory. There are survivals from the large brooches in fibula or penannular form that were a key piece of personal adornment for elites, including the Irish Tara Brooch.  Highly decorated books were mostly Gospel Books and these have survived in larger numbers, including the Insular Book of Kells, the Book of Lindisfarne, and the imperial Codex Aureus of St. Emmeram, which is one of the few to retain its " treasure binding" of gold encrusted with jewels.  Charlemagne's court seems to have been responsible for the acceptance of figurative monumental sculpture in Christian art,  and by the end of the period near life-sized figures such as the Gero Cross were common in important churches. 
Military and technological developments
During the later Roman Empire, the principal military developments were attempts to create an effective cavalry force as well as the continued development of highly specialised types of troops. The creation of heavily armoured cataphract-type soldiers as cavalry was an important feature of the 5th-century Roman military. The various invading tribes had differing emphases on types of soldiers—ranging from the primarily infantry Anglo-Saxon invaders of Britain to the Vandals and Visigoths who had a high proportion of cavalry in their armies.  During the early invasion period, the stirrup had not been introduced into warfare, which limited the usefulness of cavalry as shock troops because it was not possible to put the full force of the horse and rider behind blows struck by the rider.  The greatest change in military affairs during the invasion period was the adoption of the Hunnic composite bow in place of the earlier, and weaker, Scythian composite bow.  Another development was the increasing use of longswords  and the progressive replacement of scale armour by mail armour and lamellar armour. 
The importance of infantry and light cavalry began to decline during the early Carolingian period, with a growing dominance of elite heavy cavalry. The use of militia-type levies of the free population declined over the Carolingian period.  Although much of the Carolingian armies were mounted, a large proportion during the early period appear to have been mounted infantry, rather than true cavalry.  One exception was Anglo-Saxon England, where the armies were still composed of regional levies, known as the fyrd, which were led by the local elites.  In military technology, one of the main changes was the return of the crossbow, which had been known in Roman times and reappeared as a military weapon during the last part of the Early Middle Ages.  Another change was the introduction of the stirrup, which increased the effectiveness of cavalry as shock troops. A technological advance that had implications beyond the military was the horseshoe, which allowed horses to be used in rocky terrain. 
High Middle Ages
Society and economic life
The High Middle Ages was a period of tremendous expansion of population. The estimated population of Europe grew from 35 to 80 million between 1000 and 1347, although the exact causes remain unclear: improved agricultural techniques, the decline of slaveholding, a more clement climate and the lack of invasion have all been suggested.   As much as 90 per cent of the European population remained rural peasants. Many were no longer settled in isolated farms but had gathered into small communities, usually known as manors or villages.  These peasants were often subject to noble overlords and owed them rents and other services, in a system known as manorialism. There remained a few free peasants throughout this period and beyond,  with more of them in the regions of Southern Europe than in the north. The practice of assarting, or bringing new lands into production by offering incentives to the peasants who settled them, also contributed to the expansion of population. 
The open-field system of agriculture was commonly practiced in most of Europe, especially in "northwestern and central Europe".  Such agricultural communities had three basic characteristics: individual peasant holdings in the form of strips of land were scattered among the different fields belonging to the manor; crops were rotated from year to year to preserve soil fertility; and common land was used for grazing livestock and other purposes. Some regions used a three-field system of crop rotation, others retained the older two-field system. 
Other sections of society included the nobility, clergy, and townsmen. Nobles, both the titled nobility and simple knights, exploited the manors and the peasants, although they did not own lands outright but were granted rights to the income from a manor or other lands by an overlord through the system of feudalism. During the 11th and 12th centuries, these lands, or fiefs, came to be considered hereditary, and in most areas they were no longer divisible between all the heirs as had been the case in the early medieval period. Instead, most fiefs and lands went to the eldest son.  [Q] The dominance of the nobility was built upon its control of the land, its military service as heavy cavalry, control of castles, and various immunities from taxes or other impositions. [R] Castles, initially in wood but later in stone, began to be constructed in the 9th and 10th centuries in response to the disorder of the time, and provided protection from invaders as well as allowing lords defence from rivals. Control of castles allowed the nobles to defy kings or other overlords.  Nobles were stratified; kings and the highest-ranking nobility controlled large numbers of commoners and large tracts of land, as well as other nobles. Beneath them, lesser aristocrats had authority over smaller areas of land and fewer people, often only commoners. The lowest-ranking nobles did not own land, and had to serve wealthier aristocrats.  [S]
The clergy was divided into two types: the secular clergy, who lived out in the world, and the regular clergy, who lived isolated under a religious rule and usually consisted of monks.  Throughout the period monks remained a very small proportion of the population, usually less than one percent.  Most of the regular clergy were drawn from the nobility, the same social class that served as the recruiting ground for the upper levels of the secular clergy. The local parish priests were often drawn from the peasant class.  Townsmen were in a somewhat unusual position, as they did not fit into the traditional three-fold division of society into nobles, clergy, and peasants. During the 12th and 13th centuries, the ranks of the townsmen expanded greatly as existing towns grew and new population centres were founded.  But throughout the Middle Ages the population of the towns probably never exceeded 10 percent of the total population. 
Jews also spread across Europe during the period. Communities were established in Germany and England in the 11th and 12th centuries, but Spanish Jews, long settled in Spain under the Muslims, came under Christian rule and increasing pressure to convert to Christianity.  Most Jews were confined to the cities, as they were not allowed to own land or be peasants.  [T] Besides the Jews, there were other non-Christians on the edges of Europe—pagan Slavs in Eastern Europe and Muslims in Southern Europe. 
Women in the Middle Ages were officially required to be subordinate to some male, whether their father, husband, or other kinsman. Widows, who were often allowed much control over their own lives, were still restricted legally. Women's work generally consisted of household or other domestically inclined tasks. Peasant women were usually responsible for taking care of the household, child-care, as well as gardening and animal husbandry near the house. They could supplement the household income by spinning or brewing at home. At harvest-time, they were also expected to help with field-work.  Townswomen, like peasant women, were responsible for the household, and could also engage in trade. What trades were open to women varied by country and period.  Noblewomen were responsible for running a household, and could occasionally be expected to handle estates in the absence of male relatives, but they were usually restricted from participation in military or government affairs. The only role open to women in the Church was that of nuns, as they were unable to become priests. 
In central and northern Italy and in Flanders, the rise of towns that were to a degree self-governing stimulated economic growth and created an environment for new types of trade associations. Commercial cities on the shores of the Baltic entered into agreements known as the Hanseatic League, and the Italian Maritime republics such as Venice, Genoa, and Pisa expanded their trade throughout the Mediterranean. [U] Great trading fairs were established and flourished in northern France during the period, allowing Italian and German merchants to trade with each other as well as local merchants.  In the late 13th century new land and sea routes to the Far East were pioneered, famously described in The Travels of Marco Polo written by one of the traders, Marco Polo (d. 1324).  Besides new trading opportunities, agricultural and technological improvements enabled an increase in crop yields, which in turn allowed the trade networks to expand.  Rising trade brought new methods of dealing with money, and gold coinage was again minted in Europe, first in Italy and later in France and other countries. New forms of commercial contracts emerged, allowing risk to be shared among merchants. Accounting methods improved, partly through the use of double-entry bookkeeping; letters of credit also appeared, allowing easy transmission of money. 
Rise of state power
The High Middle Ages was the formative period in the history of the modern Western state. Kings in France, England, and Spain consolidated their power, and set up lasting governing institutions.  New kingdoms such as Hungary and Poland, after their conversion to Christianity, became Central European powers.  The Magyars settled Hungary around 900 after a series of invasions in the 9th century,  which resulted the disintegration of Moravia and the cessation of the rule of East Francia beyond the Enns river. The papacy, long attached to an ideology of independence from secular kings, first asserted its claim to temporal authority over the entire Christian world; the Papal Monarchy reached its apogee in the early 13th century under the pontificate of Innocent III (pope 1198–1216).  Northern Crusades and the advance of Christian kingdoms and military orders into previously pagan regions in the Baltic and Finnic north-east brought the forced assimilation of numerous native peoples into European culture. 
During the early High Middle Ages, Germany was ruled by the Ottonian dynasty, which struggled to control the powerful dukes ruling over territorial duchies tracing back to the Migration period. In 1024, they were replaced by the Salian dynasty, who famously clashed with the papacy under Emperor Henry IV (r. 1084–1105) over Church appointments as part of the Investiture Controversy.  His successors continued to struggle against the papacy as well as the German nobility. A period of instability followed the death of Emperor Henry V (r. 1111–25), who died without heirs, until Frederick I Barbarossa (r. 1155–90) took the imperial throne.  Although he ruled effectively, the basic problems remained, and his successors continued to struggle into the 13th century.  Barbarossa's grandson Frederick II (r. 1220–50), who was also heir to the throne of Sicily through his mother, clashed repeatedly with the papacy. His court was famous for its scholars and he was often accused of heresy. 
Under the Capetian dynasty the French monarchy slowly began to expand its authority over the nobility, growing out of the Île-de-France to exert control over more of the country in the 11th and 12th centuries.  They faced a powerful rival in the Dukes of Normandy, who in 1066 under William the Conqueror (duke 1035–1087), conquered England (r. 1066–87) and created a cross-channel empire that lasted, in various forms, throughout the rest of the Middle Ages.   Norman warbands seized southern Italy and Sicily from the local Lombard, Byzantine and Muslim rulers. Their hold of the territory was recognised by the papacy in 1059, and Roger II (r. 1105–54) united these lands into the Kingdom of Sicily.  Under the Angevin dynasty of Henry II (r. 1154–89) and his son Richard I (r. 1189–99), the kings of England ruled over England and large areas of France.  [V] Richard's younger brother John (r. 1199–1216) lost Normandy and the rest of the northern French possessions in 1204 to the French King Philip II Augustus (r. 1180–1223). This led to dissension among the English nobility, while John's financial exactions to pay for his unsuccessful attempts to regain Normandy led in 1215 to Magna Carta, a charter that confirmed the rights and privileges of free men in England. Under Henry III (r. 1216–72), John's son, further concessions were made to the nobility, and royal power was diminished.  The French monarchy continued to make gains against the nobility during the late 12th and 13th centuries, bringing more territories within the kingdom under the king's personal rule and centralising the royal administration.  Under Louis IX (r. 1226–70), royal prestige rose to new heights as Louis served as a mediator for most of Europe.  [W]
In Iberia, the Christian states, which had been confined to the north-western part of the peninsula, began to push back against the Islamic states in the south, a period known as the Reconquista.  By about 1150, the Christian north had coalesced into the five major kingdoms of León, Castile, Aragon, Navarre, and Portugal.  Southern Iberia remained under control of Islamic states, initially under the Caliphate of Córdoba, which broke up in 1031 into a shifting number of petty states known as taifas.  Although the Almoravids and the Almohads, two dynasties from the Maghreb, established centralised rule over Southern Iberia in the 1110s and 1170s respectively, their empires quickly disintegrated. Christian forces advanced again in the early 13th century, culminating in the capture of Seville in 1248. 
With the rise of the Mongol Empire in the Eurasian steppes under Genghis Khan (r. 1206–27), a new expansionist power reached Europe's eastern borderlands. Convinced of their heavenly sanctioned mission to conquer the world, the Mongols used extreme violence to overcome all resistance.  Between 1236 and 1242, they conquered Volga Bulgaria, shattered the Kievan Rus' principalities, and laid waste to large regions in Poland, Hungary, Croatia, Serbia and Bulgaria. Their commander-in-chief Batu Khan (r. 1241–56)—a grandson of Genghis Khan—set up his capital at Sarai on the Volga, establishing the Golden Horde, a Mongol state nominally under the distant Great Khan's authority. The Mongols extracted heavy tribute from the Rus' principalities, and the Rus' princes had to ingratiate themselves with the Mongol khans for economic and political concessions. [X] The Mongol conquest was followed by a peaceful period in Eastern Europe. This Pax Mongolica facilitated the development of direct trade contacts between Europe and China through newly established Genoese colonies in the Black Sea region. 
In the 11th century, the Seljuk Turks took over much of the Middle East, occupying Persia during the 1040s, Armenia in the 1060s, and Jerusalem in 1070. In 1071, the Turkish army defeated the Byzantine army at the Battle of Manzikert and captured the Byzantine Emperor Romanus IV (r. 1068–71). The Turks were then free to invade Asia Minor, which dealt a dangerous blow to the Byzantine Empire by seizing a large part of its population and its economic heartland. Although the Byzantines regrouped and recovered somewhat, they never fully regained Asia Minor and were often on the defensive. The Turks also had difficulties, losing control of Jerusalem to the Fatimids of Egypt and suffering from a series of internal civil wars.  The Byzantines also faced a revived Bulgaria, which in the late 12th and 13th centuries spread throughout the Balkans. 
The crusades were intended to seize Jerusalem from Muslim control. The First Crusade was proclaimed by Pope Urban II (pope 1088–99) at the Council of Clermont in 1095 in response to a request from the Byzantine Emperor Alexios I Komnenos (r. 1081–1118) for aid against further Muslim advances. Urban promised indulgence to anyone who took part. Tens of thousands of people from all levels of society mobilised across Europe and captured Jerusalem in 1099.  One feature of the crusades was the pogroms against local Jews that often took place as the crusaders left their countries for the East. These were especially brutal during the First Crusade,  when the Jewish communities in Cologne, Mainz, and Worms were destroyed, as well as other communities in cities between the rivers Seine and the Rhine.  Another outgrowth of the crusades was the foundation of a new type of monastic order, the military orders of the Templars and Hospitallers, which fused monastic life with military service. 
The crusaders consolidated their conquests into crusader states. During the 12th and 13th centuries, there were a series of conflicts between them and the surrounding Islamic states. Appeals from the crusader states to the papacy led to further crusades,  such as the Third Crusade, called to try to regain Jerusalem, which had been captured by Saladin (d. 1193) in 1187.  [Y] In 1203, the Fourth Crusade was diverted from the Holy Land to Constantinople, and captured the city in 1204, setting up a Latin Empire of Constantinople  and greatly weakening the Byzantine Empire. The Byzantines recaptured the city in 1261, but never regained their former strength.  By 1291 all the crusader states had been captured. 
Popes called for crusades to take place elsewhere besides the Holy Land: in Spain, southern France, and along the Baltic.  The Spanish crusades became fused with the Reconquista of Spain from the Muslims. Although the Templars and Hospitallers took part in the Spanish crusades, similar Spanish military religious orders were founded, most of which had become part of the two main orders of Calatrava and Santiago by the beginning of the 12th century.  Northern Europe also remained outside Christian influence until the 11th century or later, and became a crusading venue as part of the Northern Crusades of the 12th to 14th centuries. These crusades also spawned a military order, the Order of the Sword Brothers. Another order, the Teutonic Knights, although founded in the crusader states, focused much of its activity in the Baltic after 1225, and in 1309 moved its headquarters to Marienburg in Prussia. 
During the 11th century, developments in philosophy and theology led to increased intellectual activity. There was debate between the realists and the nominalists over the concept of " universals". Philosophical discourse was stimulated by the rediscovery of Aristotle and his emphasis on empiricism and rationalism. Scholars such as Peter Abelard (d. 1142) and Peter Lombard (d. 1164) introduced Aristotelian logic into theology. In the late 11th and early 12th centuries cathedral schools spread throughout Western Europe, signalling the shift of learning from monasteries to cathedrals and towns.  Cathedral schools were in turn replaced by the universities established in major European cities.  Philosophy and theology fused in scholasticism, an attempt by 12th- and 13th-century scholars to reconcile authoritative texts, most notably Aristotle and the Bible. This movement tried to employ a systemic approach to truth and reason  and culminated in the thought of Thomas Aquinas (d. 1274), who wrote the Summa Theologica, or Summary of Theology. 
Chivalry and the ethos of courtly love developed in royal and noble courts. This culture was expressed in the vernacular languages rather than Latin, and comprised poems, stories, legends, and popular songs spread by troubadours, or wandering minstrels. Often the stories were written down in the chansons de geste, or "songs of great deeds", such as The Song of Roland or The Song of Hildebrand.  Secular and religious histories were also produced.  Geoffrey of Monmouth (d. c. 1155) composed his Historia Regum Britanniae, a collection of stories and legends about Arthur.  Other works were more clearly history, such as Otto von Freising's (d. 1158) Gesta Friderici Imperatoris detailing the deeds of Emperor Frederick Barbarossa, or William of Malmesbury's (d. c. 1143) Gesta Regum on the kings of England. 
Legal studies advanced during the 12th century. Both secular law and canon law, or ecclesiastical law, were studied in the High Middle Ages. Secular law, or Roman law, was advanced greatly by the discovery of the Corpus Juris Civilis in the 11th century, and by 1100 Roman law was being taught at Bologna. This led to the recording and standardisation of legal codes throughout Western Europe. Canon law was also studied, and around 1140 a monk named Gratian (fl. 12th century), a teacher at Bologna, wrote what became the standard text of canon law—the Decretum. 
Among the results of the Greek and Islamic influence on this period in European history was the replacement of Roman numerals with the decimal positional number system and the invention of algebra, which allowed more advanced mathematics. Astronomy advanced following the translation of Ptolemy's Almagest from Greek into Latin in the late 12th century. Medicine was also studied, especially in southern Italy, where Islamic medicine influenced the school at Salerno. 
Technology and military
In the 12th and 13th centuries, Europe experienced economic growth and innovations in methods of production. Major technological advances included the invention of the windmill, the first mechanical clocks, the manufacture of distilled spirits, and the use of the astrolabe.  Concave spectacles were invented around 1286 by an unknown Italian artisan, probably working in or near Pisa. 
The development of a three-field rotation system for planting crops  [Z] increased the usage of land from one half in use each year under the old two-field system to two-thirds under the new system, with a consequent increase in production.  The development of the heavy plough allowed heavier soils to be farmed more efficiently, aided by the spread of the horse collar, which led to the use of draught horses in place of oxen. Horses are faster than oxen and require less pasture, factors that aided the implementation of the three-field system.  Legumes – such as peas, beans, or lentils – were grown more widely as crops, in addition to the usual cereal crops of wheat, oats, barley, and rye. 
The construction of cathedrals and castles advanced building technology, leading to the development of large stone buildings. Ancillary structures included new town halls, houses, bridges, and tithe barns.  Shipbuilding improved with the use of the rib and plank method rather than the old Roman system of mortise and tenon. Other improvements to ships included the use of lateen sails and the stern-post rudder, both of which increased the speed at which ships could be sailed. 
In military affairs, the use of infantry with specialised roles increased. Along with the still-dominant heavy cavalry, armies often included mounted and infantry crossbowmen, as well as sappers and engineers.  Crossbows, which had been known in Late Antiquity, increased in use partly because of the increase in siege warfare in the 10th and 11th centuries.  [AA] The increasing use of crossbows during the 12th and 13th centuries led to the use of closed-face helmets, heavy body armour, as well as horse armour.  Gunpowder was known in Europe by the mid-13th century with a recorded use in European warfare by the English against the Scots in 1304, although it was merely used as an explosive and not as a weapon. Cannon were being used for sieges in the 1320s, and hand-held guns were in use by the 1360s. 
Architecture, art, and music
In the 10th century the establishment of churches and monasteries led to the development of stone architecture that elaborated vernacular Roman forms, from which the term "Romanesque" is derived. Where available, Roman brick and stone buildings were recycled for their materials. From the tentative beginnings known as the First Romanesque, the style flourished and spread across Europe in a remarkably homogeneous form. Just before 1000 there was a great wave of building stone churches all over Europe.  Romanesque buildings have massive stone walls, openings topped by semi-circular arches, small windows, and, particularly in France, arched stone vaults.  The large portal with coloured sculpture in high relief became a central feature of façades, especially in France, and the capitals of columns were often carved with narrative scenes of imaginative monsters and animals.  According to art historian C. R. Dodwell, "virtually all the churches in the West were decorated with wall-paintings", of which few survive.  Simultaneous with the development in church architecture, the distinctive European form of the castle was developed and became crucial to politics and warfare. 
Romanesque art, especially metalwork, was at its most sophisticated in Mosan art, in which distinct artistic personalities including Nicholas of Verdun (d. 1205) become apparent, and an almost classical style is seen in works such as a font at Liège,  contrasting with the writhing animals of the exactly contemporary Gloucester Candlestick. Large illuminated bibles and psalters were the typical forms of luxury manuscripts, and wall-painting flourished in churches, often following a scheme with a Last Judgement on the west wall, a Christ in Majesty at the east end, and narrative biblical scenes down the nave, or in the best surviving example, at Saint-Savin-sur-Gartempe, on the barrel-vaulted roof. 
From the early 12th century, French builders developed the Gothic style, marked by the use of rib vaults, pointed arches, flying buttresses, and large stained glass windows. It was used mainly in churches and cathedrals and continued in use until the 16th century in much of Europe. Classic examples of Gothic architecture include Chartres Cathedral and Reims Cathedral in France as well as Salisbury Cathedral in England.  Stained glass became a crucial element in the design of churches, which continued to use extensive wall-paintings, now almost all lost. 
During this period the practice of manuscript illumination gradually passed from monasteries to lay workshops, so that according to Janetta Benton "by 1300 most monks bought their books in shops",  and the book of hours developed as a form of devotional book for lay-people. Metalwork continued to be the most prestigious form of art, with Limoges enamel a popular and relatively affordable option for objects such as reliquaries and crosses.  In Italy the innovations of Cimabue and Duccio, followed by the Trecento master Giotto (d. 1337), greatly increased the sophistication and status of panel painting and fresco.  Increasing prosperity during the 12th century resulted in greater production of secular art; many carved ivory objects such as gaming-pieces, combs, and small religious figures have survived. 
Monastic reform became an important issue during the 11th century, as elites began to worry that monks were not adhering to the rules binding them to a strictly religious life. Cluny Abbey, founded in the Mâcon region of France in 909, was established as part of the Cluniac Reforms, a larger movement of monastic reform in response to this fear.  Cluny quickly established a reputation for austerity and rigour. It sought to maintain a high quality of spiritual life by placing itself under the protection of the papacy and by electing its own abbot without interference from laymen, thus maintaining economic and political independence from local lords. 
Monastic reform inspired change in the secular Church. The ideals upon which it was based were brought to the papacy by Pope Leo IX (pope 1049–1054), and provided the ideology of clerical independence that led to the Investiture Controversy in the late 11th century. This involved Pope Gregory VII (pope 1073–85) and Emperor Henry IV, who initially clashed over episcopal appointments, a dispute that turned into a battle over the ideas of investiture, clerical marriage, and simony. The emperor saw the protection of the Church as one of his responsibilities as well as wanting to preserve the right to appoint his own choices as bishops within his lands, but the papacy insisted on the Church's independence from secular lords. These issues remained unresolved after the compromise of 1122 known as the Concordat of Worms. The dispute represents a significant stage in the creation of a papal monarchy separate from and equal to lay authorities. It also had the permanent consequence of empowering German princes at the expense of the German emperors. 
The High Middle Ages was a period of great religious movements. Besides the Crusades and monastic reforms, people sought to participate in new forms of religious life. New monastic orders were founded, including the Carthusians and the Cistercians. The latter, in particular, expanded rapidly in their early years under the guidance of Bernard of Clairvaux (d. 1153). These new orders were formed in response to the feeling of the laity that Benedictine monasticism no longer met the needs of the laymen, who along with those wishing to enter the religious life wanted a return to the simpler hermetical monasticism of early Christianity, or to live an Apostolic life.  Religious pilgrimages were also encouraged. Old pilgrimage sites such as Rome, Jerusalem, and Compostela received increasing numbers of visitors, and new sites such as Monte Gargano and Bari rose to prominence. 
In the 13th century mendicant orders—the Franciscans and the Dominicans—who swore vows of poverty and earned their living by begging, were approved by the papacy.  Religious groups such as the Waldensians and the Humiliati also attempted to return to the life of early Christianity in the middle 12th and early 13th centuries, another heretical movement condemned by the papacy. Others joined the Cathars, another movement condemned as heretical by the papacy. In 1209, a crusade was preached against the Cathars, the Albigensian Crusade, which in combination with the medieval Inquisition, eliminated them. 
Late Middle Ages
War, famine, and plague
The first years of the 14th century were marked by famines, culminating in the Great Famine of 1315–17.  The causes of the Great Famine included the slow transition from the Medieval Warm Period to the Little Ice Age, which left the population vulnerable when bad weather caused agricultural crises.  The years 1313–14 and 1317–21 were excessively rainy throughout Europe, resulting in widespread crop failures.  The climate change—which resulted in a declining average annual temperature for Europe during the 14th century—was accompanied by an economic downturn. 
These troubles were followed in 1347 by the Black Death, a pandemic that spread throughout Europe during the following three years.  [AB] The death toll was probably about 35 million people in Europe, about one-third of the population. Towns were especially hard-hit because of their crowded conditions. [AC] Large areas of land were left sparsely inhabited, and in some places fields were left unworked. Wages rose as landlords sought to entice the reduced number of available workers to their fields. Further problems were lower rents and lower demand for food, both of which cut into agricultural income. Urban workers also felt that they had a right to greater earnings, and popular uprisings broke out across Europe.  Among the uprisings were the jacquerie in France, the Peasants' Revolt in England, and revolts in the cities of Florence in Italy and Ghent and Bruges in Flanders. The trauma of the plague led to an increased piety throughout Europe, manifested by the foundation of new charities, the self-mortification of the flagellants, and the scapegoating of Jews.  Conditions were further unsettled by the return of the plague throughout the rest of the 14th century; it continued to strike Europe periodically during the rest of the Middle Ages. 
Society and economy
Society throughout Europe was disturbed by the dislocations caused by the Black Death. Lands that had been marginally productive were abandoned, as the survivors were able to acquire more fertile areas.  Although serfdom declined in Western Europe it became more common in Eastern Europe, as landlords imposed it on those of their tenants who had previously been free.  Most peasants in Western Europe managed to change the work they had previously owed to their landlords into cash rents.  The percentage of serfs amongst the peasantry declined from a high of 90 to closer to 50 percent by the end of the period. [ failed verification] Landlords also became more conscious of common interests with other landholders, and they joined to extort privileges from their governments. Partly at the urging of landlords, governments attempted to legislate a return to the economic conditions that existed before the Black Death.  Non-clergy became increasingly literate, and urban populations began to imitate the nobility's interest in chivalry. 
Jewish communities were expelled from England in 1290 and from France in 1306. Although some were allowed back into France, most were not, and many Jews emigrated eastwards, settling in Poland and Hungary.  The Jews were expelled from Spain in 1492, and dispersed to Turkey, France, Italy, and Holland.  The rise of banking in Italy during the 13th century continued throughout the 14th century, fuelled partly by the increasing warfare of the period and the needs of the papacy to move money between kingdoms. Many banking firms loaned money to royalty, at great risk, as some were bankrupted when kings defaulted on their loans.  [AD]
Strong, royalty-based nation states rose throughout Europe in the Late Middle Ages, particularly in England, France, and the Christian kingdoms of the Iberian Peninsula: Aragon, Castile, and Portugal. The long conflicts of the period strengthened royal control over their kingdoms and were extremely hard on the peasantry. Kings profited from warfare that extended royal legislation and increased the lands they directly controlled.  Paying for the wars required that methods of taxation become more effective and efficient, and the rate of taxation often increased.  The requirement to obtain the consent of taxpayers allowed representative bodies such as the English Parliament and the French Estates General to gain power and authority. 
Throughout the 14th century, French kings sought to expand their influence at the expense of the territorial holdings of the nobility.  They ran into difficulties when attempting to confiscate the holdings of the English kings in southern France, leading to the Hundred Years' War,  waged from 1337 to 1453.  Early in the war the English under Edward III (r. 1327–77) and his son Edward, the Black Prince (d. 1376), [AE] won the battles of Crécy and Poitiers, captured the city of Calais, and won control of much of France. [AF] The resulting stresses almost caused the disintegration of the French kingdom during the early years of the war.  In the early 15th century, France again came close to dissolving, but in the late 1420s the military successes of Joan of Arc (d. 1431) led to the victory of the French and the capture of the last English possessions in southern France in 1453.  The price was high, as the population of France at the end of the Wars was likely half what it had been at the start of the conflict. Conversely, the Wars had a positive effect on English national identity, doing much to fuse the various local identities into a national English ideal. The conflict with France also helped create a national culture in England separate from French culture, which had previously been the dominant influence.  The dominance of the English longbow began during early stages of the Hundred Years' War,  and cannon appeared on the battlefield at Crécy in 1346. 
In modern-day Germany, the Holy Roman Empire continued to rule, but the elective nature of the imperial crown meant there was no enduring dynasty around which a strong state could form.  Further east, the kingdoms of Poland, Hungary, and Bohemia grew powerful.  In Iberia, the Christian kingdoms continued to gain land from the Muslim kingdoms of the peninsula;  Portugal concentrated on expanding overseas during the 15th century, while the other kingdoms were riven by difficulties over royal succession and other concerns.   After losing the Hundred Years' War, England went on to suffer a long civil war known as the Wars of the Roses, which lasted into the 1490s  and only ended when Henry Tudor (r. 1485–1509 as Henry VII) became king and consolidated power with his victory over Richard III (r. 1483–85) at Bosworth in 1485.  In Scandinavia, Margaret I of Denmark (r. in Denmark 1387–1412) consolidated Norway, Denmark, and Sweden in the Union of Kalmar, which continued until 1523. The major power around the Baltic Sea was the Hanseatic League, a commercial confederation of city-states that traded from Western Europe to Russia.  Scotland emerged from English domination under Robert the Bruce (r. 1306–29), who secured papal recognition of his kingship in 1328. 
Collapse of Byzantium
Although the Palaiologos emperors recaptured Constantinople from the Western Europeans in 1261, they were never able to regain control of much of the former imperial lands. They usually controlled only a small section of the Balkan Peninsula near Constantinople, the city itself, and some coastal lands on the Black Sea and around the Aegean Sea. The former Byzantine lands in the Balkans were divided between the new Kingdom of Serbia, the Second Bulgarian Empire and the city-state of Venice. The power of the Byzantine emperors was threatened by a new Turkish tribe, the Ottomans, who established themselves in Anatolia in the 13th century and steadily expanded throughout the 14th century. The Ottomans expanded into Europe, reducing Bulgaria to a vassal state by 1366 and taking over Serbia after its defeat at the Battle of Kosovo in 1389. Western Europeans rallied to the plight of the Christians in the Balkans and declared a new crusade in 1396; a great army was sent to the Balkans, where it was defeated at the Battle of Nicopolis.  Constantinople was finally captured by the Ottomans in 1453. 
Controversy within the Church
During the tumultuous 14th century, disputes within the leadership of the Church led to the Avignon Papacy of 1309–76,  also called the "Babylonian Captivity of the Papacy" (a reference to the Babylonian captivity of the Jews),  and then to the Great Schism, lasting from 1378 to 1418, when there were two and later three rival popes, each supported by several states.  Ecclesiastical officials convened at the Council of Constance in 1414, and in the following year the council deposed one of the rival popes, leaving only two claimants. Further depositions followed, and in November 1417, the council elected Martin V (pope 1417–31) as pope. 
Besides the schism, the Western Church was riven by theological controversies, some of which turned into heresies. John Wycliffe (d. 1384), an English theologian, was condemned as a heretic in 1415 for teaching that the laity should have access to the text of the Bible as well as for holding views on the Eucharist that were contrary to Church doctrine.  Wycliffe's teachings influenced two of the major heretical movements of the later Middle Ages: Lollardy in England and Hussitism in Bohemia.  The Bohemian movement initiated with the teaching of Jan Hus, who was burned at the stake in 1415, after being condemned as a heretic by the Council of Constance. The Hussite Church, although the target of a crusade, survived beyond the Middle Ages.  Other heresies were manufactured, such as the accusations against the Knights Templar that resulted in their suppression in 1312, and the division of their great wealth between the French King Philip IV (r. 1285–1314) and the Hospitallers. 
The papacy further refined the practice in the Mass in the Late Middle Ages, holding that the clergy alone was allowed to partake of the wine in the Eucharist. This further distanced the secular laity from the clergy. The laity continued the practices of pilgrimages, veneration of relics, and belief in the power of the Devil. Mystics such as Meister Eckhart (d. 1327) and Thomas à Kempis (d. 1471) wrote works that taught the laity to focus on their inner spiritual life, which laid the groundwork for the Protestant Reformation. Besides mysticism, belief in witches and witchcraft became widespread, and by the late 15th century the Church had begun to lend credence to populist fears of witchcraft with its condemnation of witches in 1484, and the publication in 1486 of the Malleus Maleficarum, the most popular handbook for witch-hunters. 
Scholars, intellectuals, and exploration
During the Later Middle Ages, theologians such as John Duns Scotus (d. 1308) and William of Ockham (d. c. 1348)  led a reaction against intellectualist scholasticism, objecting to the application of reason to faith. Their efforts undermined the prevailing Platonic idea of universals. Ockham's insistence that reason operates independently of faith allowed science to be separated from theology and philosophy.  Legal studies were marked by the steady advance of Roman law into areas of jurisprudence previously governed by customary law. The lone exception to this trend was in England, where the common law remained pre-eminent. Other countries codified their laws; legal codes were promulgated in Castile, Poland, and Lithuania. 
Education remained mostly focused on the training of future clergy. The basic learning of the letters and numbers remained the province of the family or a village priest, but the secondary subjects of the trivium—grammar, rhetoric, logic—were studied in cathedral schools or in schools provided by cities. Commercial secondary schools spread, and some Italian towns had more than one such enterprise. Universities also spread throughout Europe in the 14th and 15th centuries. Lay literacy rates rose, but were still low; one estimate gave a literacy rate of 10 per cent of males and 1 per cent of females in 1500. 
The publication of vernacular literature increased, with Dante (d. 1321), Petrarch (d. 1374) and Giovanni Boccaccio (d. 1375) in 14th-century Italy, Geoffrey Chaucer (d. 1400) and William Langland (d. c. 1386) in England, and François Villon (d. 1464) and Christine de Pizan (d. c. 1430) in France. Much literature remained religious in character, and although a great deal of it continued to be written in Latin, a new demand developed for saints' lives and other devotional tracts in the vernacular languages.  This was fed by the growth of the Devotio Moderna movement, most prominently in the formation of the Brethren of the Common Life, but also in the works of German mystics such as Meister Eckhart and Johannes Tauler (d. 1361).  Theatre also developed in the guise of miracle plays put on by the Church.  At the end of the period, the development of the printing press in about 1450 led to the establishment of publishing houses throughout Europe by 1500. 
In the early 15th century, the countries of the Iberian Peninsula began to sponsor exploration beyond the boundaries of Europe. Prince Henry the Navigator of Portugal (d. 1460) sent expeditions that discovered the Canary Islands, the Azores, and Cape Verde during his lifetime. After his death, exploration continued; Bartolomeu Dias (d. 1500) went around the Cape of Good Hope in 1486, and Vasco da Gama (d. 1524) sailed around Africa to India in 1498.  The combined Spanish monarchies of Castile and Aragon sponsored the voyage of exploration by Christopher Columbus (d. 1506) in 1492 that discovered the Americas.  The English crown under Henry VII sponsored the voyage of John Cabot (d. 1498) in 1497, which landed on Cape Breton Island. 
Technological and military developments
One of the major developments in the military sphere during the Late Middle Ages was the increased use of infantry and light cavalry.  The English also employed longbowmen, but other countries were unable to create similar forces with the same success.  Armour continued to advance, spurred by the increasing power of crossbows, and plate armour was developed to protect soldiers from crossbows as well as the hand-held guns that were developed.  Pole arms reached new prominence with the development of the Flemish and Swiss infantry armed with pikes and other long spears. 
In agriculture, the increased usage of sheep with long-fibred wool allowed a stronger thread to be spun. In addition, the spinning wheel replaced the traditional distaff for spinning wool, tripling production.  [AG] A less technological refinement that still greatly affected daily life was the use of buttons as closures for garments, which allowed for better fitting without having to lace clothing on the wearer.  Windmills were refined with the creation of the tower mill, allowing the upper part of the windmill to be spun around to face the direction from which the wind was blowing.  The blast furnace appeared around 1350 in Sweden, increasing the quantity of iron produced and improving its quality.  The first patent law in 1447 in Venice protected the rights of inventors to their inventions. 
Late medieval art and architecture
The Late Middle Ages in Europe as a whole correspond to the Trecento and Early Renaissance cultural periods in Italy. Northern Europe and Spain continued to use Gothic styles, which became increasingly elaborate in the 15th century, until almost the end of the period. International Gothic was a courtly style that reached much of Europe in the decades around 1400, producing masterpieces such as the Très Riches Heures du Duc de Berry.  All over Europe secular art continued to increase in quantity and quality, and in the 15th century the mercantile classes of Italy and Flanders became important patrons, commissioning small portraits of themselves in oils as well as a growing range of luxury items such as jewellery, ivory caskets, cassone chests, and maiolica pottery. These objects also included the Hispano-Moresque ware produced by mostly Mudéjar potters in Spain. Although royalty owned huge collections of plate, little survives except for the Royal Gold Cup.  Italian silk manufacture developed, so that Western churches and elites no longer needed to rely on imports from Byzantium or the Islamic world. In France and Flanders tapestry weaving of sets like The Lady and the Unicorn became a major luxury industry. 
The large external sculptural schemes of Early Gothic churches gave way to more sculpture inside the building, as tombs became more elaborate and other features such as pulpits were sometimes lavishly carved, as in the Pulpit by Giovanni Pisano in Sant'Andrea. Painted or carved wooden relief altarpieces became common, especially as churches created many side-chapels. Early Netherlandish painting by artists such as Jan van Eyck (d. 1441) and Rogier van der Weyden (d. 1464) rivalled that of Italy, as did northern illuminated manuscripts, which in the 15th century began to be collected on a large scale by secular elites, who also commissioned secular books, especially histories. From about 1450 printed books rapidly became popular, though still expensive. There were around 30,000 different editions of incunabula, or works printed before 1500,  by which time illuminated manuscripts were commissioned only by royalty and a few others. Very small woodcuts, nearly all religious, were affordable even by peasants in parts of Northern Europe from the middle of the 15th century. More expensive engravings supplied a wealthier market with a variety of images. 
The medieval period is frequently caricatured as a "time of ignorance and superstition" that placed "the word of religious authorities over personal experience and rational activity."  This is a legacy from both the Renaissance and Enlightenment when scholars favourably contrasted their intellectual cultures with those of the medieval period. Renaissance scholars saw the Middle Ages as a period of decline from the high culture and civilisation of the Classical world. Enlightenment scholars saw reason as superior to faith, and thus viewed the Middle Ages as a time of ignorance and superstition. 
Others argue that reason was generally held in high regard during the Middle Ages. Science historian Edward Grant writes, "If revolutionary rational thoughts were expressed [in the 18th century], they were only made possible because of the long medieval tradition that established the use of reason as one of the most important of human activities".  Also, contrary to common belief, David Lindberg writes, "the late medieval scholar rarely experienced the coercive power of the Church and would have regarded himself as free (particularly in the natural sciences) to follow reason and observation wherever they led". 
The caricature of the period is also reflected in some more specific notions. One misconception, first propagated in the 19th century  and still very common, is that all people in the Middle Ages believed that the Earth was flat.  This is untrue, as lecturers in the medieval universities commonly argued that evidence showed the Earth was a sphere.  Lindberg and Ronald Numbers, another scholar of the period, state that there "was scarcely a Christian scholar of the Middle Ages who did not acknowledge [Earth's] sphericity and even know its approximate circumference".  Other misconceptions such as "the Church prohibited autopsies and dissections during the Middle Ages", "the rise of Christianity killed off ancient science", or "the medieval Christian Church suppressed the growth of natural philosophy", are all cited by Numbers as examples of widely popular myths that still pass as historical truth, although they are not supported by historical research. 
- This is the year the last Western Roman Emperor was deposed. 
- The commanders of the Roman military in the area appear to have taken food and other supplies intended to be given to the Goths and instead sold them to the Goths. The revolt was triggered when one of the Roman military commanders attempted to take the Gothic leaders hostage but failed to secure all of them. 
- An alternative date of 480 is sometimes given, as that was the year Romulus Augustulus' predecessor Julius Nepos died; Nepos had continued to assert that he was the Western emperor while holding onto Dalmatia. 
- Childeric's grave was discovered at Tournai in 1653 and is remarkable for its grave goods, which included weapons and a large quantity of gold. 
- Brittany takes its name from this settlement by Britons. 
- Such entourages are named comitatus by historians, although it is not a contemporary term. It was adapted in the 19th century from a word used by the 2nd-century historian Tacitus to describe the close companions of a lord or king.  The comitatus comprised young men who were supposed to be utterly devoted to their lord. If their sworn lord died, they were expected to fight to the death also. 
- The English word "slave" derives from the Latin term for Slavs, slavicus. 
- Dhu Nuwas, ruler of what is today Yemen, converted in 525 and his subsequent persecution of Christians led to the invasion and conquest of his kingdom by the Axumites of Ethiopia. 
- Constantine died as the monk Cyril in a Roman monastery. His work was continued by his brother Methodius (d. 885) and their pupils. 
- The Papal States endured until 1870, when the Kingdom of Italy seized most of them. 
- Examples include Liudewit (d. 823) who ruled the lands along the Sava river, and Pribina (d. 861) whose domains were located in the March of Pannonia. 
- The Carolingian minuscule was developed from the uncial script of Late Antiquity, which was a smaller, rounder form of writing the Latin alphabet than the classical forms. 
- There was a brief re-uniting of the Empire by Charles III, known as "the Fat", in 884, although the actual units of the empire were not merged and retained their separate administrations. Charles was deposed in 887 and died in January 888. 
- The Carolingian dynasty had earlier been displaced by King Odo (r. 888–898), previously Count of Paris, who took the throne in 888.  Although members of the Carolingian dynasty became kings in the western lands after Odo's death, Odo's family also supplied kings—his brother Robert I became king for 922–923, and then Robert's son-in-law Raoul was king from 929 to 936—before the Carolingians reclaimed the throne once more. 
- Hugh Capet was a grandson of Robert I, an earlier king. 
- Examples include a 4th-century basilica uncovered under the Barcelona Cathedral, the five-aisled Cathedral of Saint Étienne in Paris, and the huge Basilica of Sant'Apollinare in Classe in Ravenna. 
- This inheritance pattern is known as primogeniture. 
- Heavy cavalry had been introduced into Europe from the Persian cataphract of the 5th and 6th centuries, but the addition of the stirrup in the 7th allowed the full force of horse and rider to be used in combat. 
- In France, Germany, and the Low Countries there was a further type of "noble", the ministerialis, who were in effect unfree knights. They descended from serfs who had served as warriors or government officials, which increased status allowed their descendants to hold fiefs as well as become knights while still being technically serfs. 
- A few Jewish peasants remained on the land under Byzantine rule in the East as well as some on Crete under Venetian rule, but they were the exception in Europe. 
- These two groups—Germans and Italians—took different approaches to their trading arrangements. Most German cities co-operated in the Hanseatic League, in contrast with the Italian city-states who engaged in internecine strife. 
- This grouping of lands is often called the Angevin Empire. 
- Louis was canonised in 1297 by Pope Boniface VIII. 
- For example, Prince Alexander Nevsky (d. 1263) made four visits at Sarai to gain the Khans' favor. He overcame his rivals with Mongol assistance, crushed an anti-Mongol riot in Novgorod, and received a grant of tax exemption for the Orthodox Church. 
- Military religious orders such as the Knights Templar and the Knights Hospitaller were formed and went on to play an integral role in the crusader states. 
- It had spread to Northern Europe by 1000, and had reached Poland by the 12th century. 
- Crossbows are slow to reload, which limits their use on open battlefields. In sieges the slowness is not as big a disadvantage, as the crossbowman can hide behind fortifications while reloading. 
- The historical consensus for the last 100 years has been that the Black Death was a form of bubonic plague, but some historians have begun to challenge this view in recent years. 
- One town, Lübeck in Germany, lost 90 percent of its population to the Black Death. 
- As happened with the Bardi and Peruzzi firms in the 1340s when King Edward III of England repudiated their loans to him. 
- Edward's nickname probably came from his black armour, and was first used by John Leland in the 1530s or 1540s. 
- Calais remained in English hands until 1558. 
- This wheel was still simple, as it did not yet incorporate a treadle-wheel to twist and pull the fibres. That refinement was not invented until the 15th century. 
- Power Central Middle Ages p. 3
- Miglio "Curial Humanism" Interpretations of Renaissance Humanism p. 112
- Albrow Global Age p. 205 (note 19)
- Murray "Should the Middle Ages Be Abolished?" Essays in Medieval Studies p. 4
- Flexner (ed.) Random House Dictionary p. 1194
- "Mediaeval" Compact Edition of the Oxford English Dictionary
- Mommsen "Petrarch's Conception of the 'Dark Ages'" Speculum p. 238
- Singman Daily Life p. x
- Knox " History of the Idea of the Renaissance"
- Mommsen "Petrarch's Conception of the 'Dark Ages'" Speculum pp. 227-228
- Bruni History of the Florentine people pp. xvii–xviii
- " Middle Ages" Dictionary.com
- Heather Fall of the Roman Empire p. xi
- For example, Scandinavia in Helle, Kouri, and Olesen (ed.) Cambridge History of Scandinavia Part 1 where the start date is 1000 (on page 6) or Russia in Martin Medieval Russia 980–1584
- See the title of Epstein Economic History of Later Medieval Europe 1000–1500 or the end date used in Holmes (ed.) Oxford History of Medieval Europe
- Davies Europe pp. 291–293
- See the title of Saul Companion to Medieval England 1066–1485 and websites at English Heritage and BBC History
- Kamen Spain 1469–1714 p. 29
- Mommsen "Petrarch's Conception of the 'Dark Ages'" Speculum p. 226
- Tansey, et al. Gardner's Art Through the Ages p. 242
- Cunliffe Europe Between the Oceans pp. 391–393
- Collins Early Medieval Europe pp. 3–6
- Heather Fall of the Roman Empire p. 111
- Brown World of Late Antiquity pp. 24–25
- Collins Early Medieval Europe pp. 8–9
- Cunliffe Europe Between the Oceans pp. 403–406
- Collins Early Medieval Europe p. 24
- Brown World of Late Antiquity p. 34
- Brown World of Late Antiquity pp. 65–68, 82–94
- Backman, Worlds of Medieval Europe, pp. 43–45
- Collins Early Medieval Europe pp. 60–75
- Collins Early Medieval Europe pp. 31–33
- Brown, World of Late Antiquity, pp. 122–124
- Collins Early Medieval Europe pp. 51
- Heather Fall of the Roman Empire pp. 145–180
- Heather Fall of the Roman Empire p. 219
- Collins Early Medieval Europe pp. 59–60
- Cunliffe Europe Between the Oceans p. 417
- Collins Early Medieval Europe p. 80
- James Europe's Barbarians pp. 67–69
- Wickham Inheritance of Rome p. 79
- Wickham Inheritance of Rome p. 86
- Collins Early Medieval Europe pp. 116–134
- Wickham, Inheritance of Rome, pp. 96–97
- Wickham, Inheritance of Rome, pp. 98–101
- Collins, Early Medieval Europe, p. 100
- Collins, Early Medieval Europe, pp. 96–97
- Wickham, Inheritance of Rome, pp. 102–103
- James Europe's Barbarians pp. 82–94
- James Europe's Barbarians pp. 77–78
- James Europe's Barbarians pp. 79–80
- James Europe's Barbarians pp. 78–81
- Collins Early Medieval Europe pp. 196–208
- Curta Eastern Europe in the Middle Ages pp. 51–59
- Curta Eastern Europe in the Middle Ages pp. 71–77
- Davies Europe pp. 235–238
- Adams History of Western Art pp. 158–159
- Wickham Inheritance of Rome pp. 81–83
- Bauer History of the Medieval World pp. 200–202
- Bauer History of the Medieval World pp. 206–213
- Collins Early Medieval Europe pp. 126, 130
- Brown "Transformation of the Roman Mediterranean" Oxford Illustrated History of Medieval Europe pp. 8–9
- James Europe's Barbarians pp. 95–99
- Collins Early Medieval Europe pp. 140–143
- Brown World of Late Antiquity pp. 174–175
- Brown World of Late Antiquity p. 181
- Brown "Transformation of the Roman Mediterranean" Oxford Illustrated History of Medieval Europe pp. 45–49
- Coredon Dictionary of Medieval Terms p. 80
- Geary Before France and Germany pp. 56–57
- Wickham Inheritance of Rome pp. 189–193
- Wickham Inheritance of Rome pp. 195–199
- Wickham Inheritance of Rome p. 204
- Wickham Inheritance of Rome pp. 205–210
- Wickham Inheritance of Rome pp. 211–212
- Wickham Inheritance of Rome p. 215
- Backman, Worlds of Medieval Europe, pp. 86–91
- Coredon Dictionary of Medieval Terms p. 261
- Brown "Transformation of the Roman Mediterranean" Oxford Illustrated History of Medieval Europe pp. 24–26
- Gies and Gies Life in a Medieval City pp. 3–4
- Loyn "Jews" Middle Ages p. 191
- Collins Early Medieval Europe p. 136
- Collins Early Medieval Europe pp. 141–142
- Collins Early Medieval Europe pp. 142–143, 150, 160
- Cunliffe Europe Between the Oceans pp. 421–423
- Collins Early Medieval Europe pp. 376–377
- Brown "Transformation of the Roman Mediterranean" Oxford Illustrated History of Medieval Europe p. 15
- Wickham Inheritance of Rome pp. 218–219
- Collins Early Medieval Europe pp. 347–348
- Collins Early Medieval Europe p. 354
- McCormick Origins of the European Economy pp. 753–754
- McCormick Origins of the European Economy pp. 708–733
- McCormick Origins of the European Economy pp. 791–792
- McCormick Origins of the European Economy pp. 670–677
- Grierson "Coinage and currency" Middle Ages
- Collins Early Medieval Europe pp. 218–233
- Davies Europe pp. 328–332
- Wickham Inheritance of Rome pp. 170–172
- Colish Medieval Foundations pp. 62–63
- Lawrence Medieval Monasticism pp. 10–13
- Collins Early Medieval Europe pp. 75–76
- Lawrence Medieval Monasticism pp. 18–24
- Collins Early Medieval Europe pp. 237–240, 323
- Curta Eastern Europe in the Middle Ages pp. 322, 495
- Wickham Inheritance of Rome pp. 185–187
- Hamilton Religion in the Medieval West pp. 43–44
- Colish Medieval Foundations pp. 64–65
- Curta Eastern Europe in the Middle Ages pp. 190–191
- Curta Eastern Europe in the Middle Ages pp. 183–189
- Bauer History of the Medieval World pp. 246–253
- Bauer History of the Medieval World pp. 347–349
- Wickham Inheritance of Rome pp. 158–159
- Wickham Inheritance of Rome pp. 164–165
- Bauer History of the Medieval World pp. 371–378
- Brown "Transformation of the Roman Mediterranean" Oxford Illustrated History of Medieval Europe p. 20
- Davies Europe p. 824
- Curta Eastern Europe in the Middle Ages pp. 103–110.
- Curta Eastern Europe in the Middle Ages pp. 105–110.
- Stalley Early Medieval Architecture p. 73
- Backman Worlds of Medieval Europe pp. 109–111
- Davies Europe p. 302
- Collins Early Medieval Europe p. 306
- Davies Europe p. 241
- Colish Medieval Foundations pp. 66–70
- Loyn "Language and dialect" Middle Ages p. 204
- Bauer History of the Medieval World pp. 427–431
- Backman Worlds of Medieval Europe p. 139
- Collins Early Medieval Europe pp. 356–358
- Collins Early Medieval Europe pp. 358–359
- Collins Early Medieval Europe pp. 360–361
- Collins Early Medieval Europe p. 397
- Backman Worlds of Medieval Europe pp. 141–144
- Davies Europe pp. 336–339
- Backman Worlds of Medieval Europe pp. 144–145
- Collins Early Medieval Europe pp. 394–395
- Collins Early Medieval Europe pp. 378–385
- Collins Early Medieval Europe p. 387
- Davies Europe p. 309
- Collins Early Medieval Europe pp. 394–411
- Wickham Inheritance of Rome pp. 439–444
- Collins Early Medieval Europe pp. 376–386
- Collins Early Medieval Europe pp. 385–389
- Curta Eastern Europe in the Middle Ages pp. 131–134, 141–142
- Davies Europe pp. 318–320
- Davies Europe pp. 321–326
- Curta Southeastern Europe pp. 72–73, 81–98, 229, 247–249
- Nees Early Medieval Art p. 145
- Stalley, R. A.; Stalley, Professor of the History of Art Roger; Dublin), Roger (Professor of the History of Art Stalley, Professor of the History of Art Trinity College (1999). Early Medieval Architecture. Oxford University Press. p. 21. ISBN 978-0-19-284223-7.
- Parry, Ken (10 May 2010). The Blackwell Companion to Eastern Christianity. John Wiley & Sons. p. 368. ISBN 978-1-4443-3361-9.
- Stalley Early Medieval Architecture pp. 28–29
- Stalley Early Medieval Architecture pp. 21–35
- Stalley Early Medieval Architecture pp. 43–44
- Cosman Medieval Wordbook p. 247
- Stalley Early Medieval Architecture pp. 45, 49
- Kitzinger Early Medieval Art pp. 36–53, 61–64
- Henderson Early Medieval pp. 18–21, 63–71
- Henderson Early Medieval pp. 36–42, 49–55, 103, 143, 204–208
- Benton Art of the Middle Ages pp. 41–49
- Lasko Ars Sacra pp. 16–18
- Henderson Early Medieval pp. 233–238
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom pp. 28–29
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 30
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom pp. 30–31
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 34
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 39
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom pp. 58–59
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 76
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 67
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 80
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom pp. 88–91
- Whitton "Society of Northern Europe" Oxford Illustrated History of Medieval Europe p. 134
- Gainty and Ward Sources of World Societies p. 352
- Jordan Europe in the High Middle Ages pp. 5–12
- Backman Worlds of Medieval Europe p. 156
- Backman Worlds of Medieval Europe pp. 164–165
- Epstein Economic and Social History pp. 52–53
- Pounds Historical Geography of Europe p. 166
- Dawtry "Agriculture" Middle Ages pp. 15–16
- Barber Two Cities pp. 37–41
- Cosman Medieval Wordbook p. 193
- Davies Europe pp. 311–315
- Singman Daily Life p. 3
- Singman Daily Life p. 8
- Hamilton Religion on the Medieval West p. 33
- Singman Daily Life p. 143
- Barber Two Cities pp. 33–34
- Barber Two Cities pp. 48–49
- Singman Daily Life p. 171
- Epstein Economic and Social History p. 54
- Singman Daily Life p. 13
- Singman Daily Life pp. 14–15
- Singman Daily Life pp. 177–178
- Epstein Economic and Social History p. 81
- Epstein Economic and Social History pp. 82–83
- Barber Two Cities pp. 60–67
- Backman Worlds of Medieval Europe p. 160
- Barber Two Cities pp. 74–76
- Backman Worlds of Medieval Europe pp. 283–284
- Barber Two Cities pp. 365–380
- Davies Europe p. 296
- Backman Worlds of Medieval Europe pp. 262–279
- Barber Two Cities pp. 371–372
- Backman Worlds of Medieval Europe pp. 181–186
- Jordan Europe in the High Middle Ages pp. 143–147
- Jordan Europe in the High Middle Ages pp. 250–252
- Denley "Mediterranean" Oxford Illustrated History of Medieval Europe pp. 235–238
- Backman Worlds of Medieval Europe pp. 187–189
- Jordan Europe in the High Middle Ages pp. 59–61
- Backman Worlds of Medieval Europe pp. 189–196
- Barber Two Cities pp. 206–210
- Backman Worlds of Medieval Europe p. 263
- Barlow Feudal Kingdom pp. 285–286
- Backman Worlds of Medieval Europe pp. 286–289
- Backman Worlds of Medieval Europe pp. 289–293
- Davies Europe pp. 355–357
- Hallam and Everard Capetian France p. 401
- Davies Europe p. 345
- Barber Two Cities p. 341
- Barber Two Cities pp. 350–355
- Barber Two Cities pp. 458–460
- Curta Eastern Europe in the Middle Ages pp. 711–7127
- Curta Eastern Europe in the Middle Ages pp. 703–717
- Kaufmann and Kaufmann Medieval Fortress pp. 268–269
- Davies Europe pp. 332–333
- Davies Europe pp. 386–387
- Riley-Smith "Crusades" Middle Ages pp. 106–107
- Lock Routledge Companion to the Crusades pp. 397–399
- Barber Two Cities pp. 145–149
- Payne Dream and the Tomb pp. 204–205
- Lock Routledge Companion to the Crusades pp. 353–356
- Lock Routledge Companion to the Crusades pp. 156–161
- Backman Worlds of Medieval Europe pp. 299–300
- Lock Routledge Companion to the Crusades p. 122
- Lock Routledge Companion to the Crusades pp. 205–213
- Lock Routledge Companion to the Crusades pp. 213–224
- Backman Worlds of Medieval Europe pp. 232–237
- Backman Worlds of Medieval Europe pp. 247–252
- Loyn "Scholasticism" Middle Ages pp. 293–294
- Colish Medieval Foundations pp. 295–301
- Backman Worlds of Medieval Europe pp. 252–260
- Davies Europe p. 349
- Saul Companion to Medieval England pp. 113–114
- Backman Worlds of Medieval Europe pp. 237–241
- Backman Worlds of Medieval Europe pp. 241–246
- Ilardi, Renaissance Vision, pp. 18–19
- Backman Worlds of Medieval Europe p. 246
- Ilardi, Renaissance Vision, pp. 4–5, 49
- Epstein Economic and Social History p. 45
- Backman Worlds of Medieval Europe pp. 156–159
- Barber Two Cities p. 80
- Barber Two Cities p. 68
- Barber Two Cities p. 73
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 125
- Singman Daily Life p. 124
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 130
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom pp. 296–298
- Benton Art of the Middle Ages p. 55
- Adams History of Western Art pp. 181–189
- Benton Art of the Middle Ages pp. 58–60, 65–66, 73–75
- Dodwell Pictorial Arts of the West p. 37
- Benton Art of the Middle Ages pp. 295–299
- Lasko Ars Sacra pp. 240–250
- Benton Art of the Middle Ages pp. 91–92
- Adams History of Western Art pp. 195–216
- Benton Art of the Middle Ages pp. 185–190; 269–271
- Benton Art of the Middle Ages p. 250
- Benton Art of the Middle Ages pp. 135–139, 245–247
- Benton Art of the Middle Ages pp. 264–278
- Benton Art of the Middle Ages pp. 248–250
- Hamilton Religion in the Medieval West p. 47
- Rosenwein Rhinoceros Bound pp. 40–41
- Barber Two Cities pp. 143–144
- Morris "Northern Europe" Oxford Illustrated History of Medieval Europe p. 199
- Barber Two Cities pp. 155–167
- Barber Two Cities pp. 185–192
- Loyn "Famine" Middle Ages p. 128
- Backman Worlds of Medieval Europe pp. 373–374
- Epstein Economic and Social History p. 41
- Backman Worlds of Medieval Europe p. 370
- Schove "Plague" Middle Ages p. 269
- Epstein Economic and Social History pp. 171–172
- Singman Daily Life p. 189
- Backman Worlds of Medieval Europe pp. 374–380
- Davies Europe pp. 412–413
- Epstein Economic and Social History pp. 184–185
- Epstein Economic and Social History pp. 246–247
- Keen Pelican History of Medieval Europe pp. 234–237
- Vale "Civilization of Courts and Cities" Oxford Illustrated History of Medieval Europe pp. 346–349
- Loyn "Jews" Middle Ages p. 192
- Keen Pelican History of Medieval Europe pp. 237–239
- Watts Making of Polities pp. 201–219
- Watts Making of Polities pp. 224–233
- Watts Making of Polities pp. 233–238
- Watts Making of Polities p. 166
- Watts Making of Polities p. 169
- Loyn "Hundred Years' War" Middle Ages p. 176
- Barber Edward pp. 242–243
- Davies Europe p. 545
- Watts Making of Polities pp. 180–181
- Watts Making of Polities pp. 317–322
- Davies Europe p. 423
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 186
- Watts Making of Polities pp. 170–171
- Watts Making of Polities pp. 173–175
- Watts Making of Polities p. 173
- Watts Making of Polities pp. 327–332
- Watts Making of Polities p. 340
- Davies Europe pp. 425–426
- Davies Europe p. 431
- Davies Europe pp. 408–409
- Davies Europe pp. 385–389
- Davies Europe p. 446
- Thomson Western Church pp. 170–171
- Loyn "Avignon" Middle Ages p. 45
- Loyn "Great Schism" Middle Ages p. 153
- Thomson Western Church pp. 184–187
- Thomson Western Church pp. 197–199
- Thomson Western Church p. 218
- Thomson Western Church pp. 213–217
- Loyn "Knights of the Temple (Templars)" Middle Ages pp. 201–202
- Davies Europe pp. 436–437
- Davies Europe pp. 433–434
- Davies Europe pp. 438–439
- Singman Daily Life p. 224
- Keen Pelican History of Medieval Europe pp. 282–283
- Davies Europe p. 445
- Davies Europe p. 451
- Davies Europe pp. 454–455
- Davies Europe p. 511
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 180
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 183
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 188
- Nicolle Medieval Warfare Source Book: Warfare in Western Christendom p. 185
- Epstein Economic and Social History pp. 193–194
- Singman Daily Life p. 36
- Singman Daily Life p. 38
- Epstein Economic and Social History pp. 200–201
- Epstein Economic and Social History pp. 203–204
- Epstein Economic and Social History p. 213
- Benton Art of the Middle Ages pp. 253–256
- Lightbown Secular Goldsmiths' Work p. 78
- Benton Art of the Middle Ages pp. 257–262
- British Library Staff " Incunabula Short Title Catalogue" British Library
- Griffiths Prints and Printmaking pp. 17–18; 39–46
- Lindberg "Medieval Church Encounters" When Science & Christianity Meet p. 8
- Grant God and Reason p. 9
- Quoted in Peters "Science and Religion" Encyclopedia of Religion p. 8182
- Russell Inventing the Flat Earth pp. 49–58
- Grant Planets, Stars, & Orbs pp. 626–630
- Lindberg and Numbers "Beyond War and Peace" Church History p. 342
- Numbers " Myths and Truths in Science and Religion: A historical perspective" Lecture archive Archived 11 October 2017
- Adams, Laurie Schneider (2001). A History of Western Art (Third ed.). Boston, MA: McGraw Hill. ISBN 0-07-231717-5.
- Albrow, Martin (1997). The Global Age: State and Society Beyond Modernity. Stanford, CA: Stanford University Press. ISBN 0-8047-2870-4.
- Backman, Clifford R. (2003). The Worlds of Medieval Europe. Oxford, UK: Oxford University Press. ISBN 978-0-19-512169-8.
- Barber, Malcolm (1992). The Two Cities: Medieval Europe 1050–1320. London: Routledge. ISBN 0-415-09682-0.
- Barber, Richard (1978). Edward, Prince of Wales and Aquitaine: A Biography of the Black Prince. New York: Scribner. ISBN 0-684-15864-7.
- Barlow, Frank (1988). The Feudal Kingdom of England 1042–1216 (Fourth ed.). New York: Longman. ISBN 0-582-49504-0.
- Bauer, Susan Wise (2010). The History of the Medieval World: From the Conversion of Constantine to the First Crusade. New York: W. W. Norton. ISBN 978-0-393-05975-5.
- Benton, Janetta Rebold (2002). Art of the Middle Ages. World of Art. London: Thames & Hudson. ISBN 0-500-20350-4.
- British Library Staff (8 January 2008). "Incunabula Short Title Catalogue". British Library. Retrieved 8 April 2012.
- Brown, Peter (1989). The World of Late Antiquity AD 150–750. Library of World Civilization. New York: W. W. Norton & Company. ISBN 0-393-95803-5.
- Brown, Thomas (1998). "The Transformation of the Roman Mediterranean, 400–900". In Holmes, George (ed.). The Oxford Illustrated History of Medieval Europe. Oxford, UK: Oxford University Press. pp. 1–62. ISBN 0-19-285220-5.
- Bruni, Leonardo (2001). Hankins, James (ed.). History of the Florentine People. Vol. 1. Cambridge, MA: Harvard University Press. ISBN 978-0-674-00506-8.
- Colish, Marcia L. (1997). Medieval Foundations of the Western Intellectual Tradition 400–1400. New Haven, CT: Yale University Press. ISBN 0-300-07852-8.
- Collins, Roger (1999). Early Medieval Europe: 300–1000 (Second ed.). New York: St. Martin's Press. ISBN 0-312-21886-9.
- Coredon, Christopher (2007). A Dictionary of Medieval Terms & Phrases (Reprint ed.). Woodbridge, UK: D. S. Brewer. ISBN 978-1-84384-138-8.
- Cosman, Madeleine Pelner (2007). Medieval Wordbook: More the 4,000 Terms and Expressions from Medieval Culture. New York: Barnes & Noble. ISBN 978-0-7607-8725-0.
- Cunliffe, Barry (2008). Europe Between the Oceans: Themes and Variations 9000 BC–AD 1000. New Haven, CT: Yale University Press. ISBN 978-0-300-11923-7.
- Curta, Florin (2019). Eastern Europe in the Middle Ages (500–1300), Volume I. Brill's Companion to European History. Vol. 19. Leiden, NL: Brill. ISBN 978-90-04-41534-8.
- Davies, Norman (1996). Europe: A History. Oxford, UK: Oxford University Press. ISBN 0-19-520912-5.
- Dawtry, Anne (1989). "Agriculture". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 15–16. ISBN 0-500-27645-5.
- Denley, Peter (1998). "The Mediterranean in the Age of the Renaissance, 1200–1500". In Holmes, George (ed.). The Oxford Illustrated History of Medieval Europe. Oxford, UK: Oxford University Press. pp. 235–296. ISBN 0-19-285220-5.
- Dodwell, C. R. (1993). The Pictorial Arts of the West: 800–1200. Pellican History of Art. New Haven, CT: Yale University Press. ISBN 0-300-06493-4.
- Epstein, Steven A. (2009). An Economic and Social History of Later Medieval Europe, 1000–1500. Cambridge, UK: Cambridge University Press. ISBN 978-0-521-70653-7.
- Flexner, Stuart Berg (ed.). The Random House Dictionary of the English Language: Unabridged (Second ed.). New York: Random House. ISBN 0-394-50050-4.
- Gainty, Denis; Ward, Walter D. (2009). Sources of World Societies: Volume 2: Since 1500. Boston, MA: Bedford/St. Martin's. ISBN 0-312-68858-X.
- Geary, Patrick J. (1988). Before France and Germany: The Creation and Transformation of the Merovingian World. Oxford, UK: Oxford University Press. ISBN 0-19-504458-4.
- Gies, Joseph; Gies, Frances (1973). Life in a Medieval City. New York: Thomas Y. Crowell. ISBN 0-8152-0345-4.
- Grant, Edward (2001). God and Reason in the Middle Ages. Cambridge, UK: Cambridge University Press. ISBN 978-0-521-80279-6.
- Grant, Edward (1994). Planets, Stars, & Orbs: The Medieval Cosmos, 1200–1687. Cambridge, UK: Cambridge University Press. ISBN 978-0-521-43344-0.
- Grierson, Philip (1989). "Coinage and currency". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 97–98. ISBN 0-500-27645-5.
- Griffiths, Antony (1996). Prints and Printmaking. London: British Museum Press. ISBN 0-7141-2608-X.
- Hallam, Elizabeth M.; Everard, Judith (2001). Capetian France 987–1328 (Second ed.). New York: Longman. ISBN 0-582-40428-2.
- Hamilton, Bernard (2003). Religion in the Medieval West (Second ed.). London: Arnold. ISBN 0-340-80839-X.
- Heather, Peter (2006). The Fall of the Roman Empire: A New History of Rome and the Barbarians. Oxford, UK: Oxford University Press. ISBN 978-0-19-532541-6.
- Helle, Knut; Kouri, E. I.; Olesen, Jens E., eds. (2003). Cambridge History of Scandinavia Part 1. New York: Cambridge University Press. ISBN 0-521-47299-7.
- Henderson, George (1977). Early Medieval (Revised ed.). New York: Penguin. OCLC 641757789.
- Holmes, George, ed. (1988). The Oxford History of Medieval Europe. Oxford, UK: Oxford University Press. ISBN 0-19-285272-8.
- Ilardi, Vincent (2007). Renaissance Vision from Spectacles to Telescopes. Philadelphia: American Philosophical Society. ISBN 978-0-87169-259-7.
- James, Edward (2009). Europe's Barbarians: AD 200–600. The Medieval World. Harlow, UK: Pearson Longman. ISBN 978-0-582-77296-0.
- Jordan, William C. (2003). Europe in the High Middle Ages. Penguin History of Europe. New York: Viking. ISBN 978-0-670-03202-0.
- Kamen, Henry (2005). Spain 1469–1714 (Third ed.). New York: Pearson/Longman. ISBN 0-582-78464-6.
- Kaufmann, J. E.; Kaufmann, H. W. (2001). The Medieval Fortress: Castles, Forts and Walled Cities of the Middle Ages (2004 ed.). Cambridge, MA: Da Capo Press. ISBN 0-306-81358-0.
- Keen, Maurice (1988) . The Pelican History of Medieval Europe. London: Penguin Books. ISBN 0-14-021085-7.
- Kitzinger, Ernst (1955). Early Medieval Art at the British Museum (Second ed.). London: British Museum. OCLC 510455.
- Knox, E. L. "History of the Idea of the Renaissance". Europe in the Late Middle Ages. Boise State University. Archived from the original on 3 February 2012. Retrieved 25 December 2012.
- Lasko, Peter (1972). Ars Sacra, 800–1200. Penguin History of Art (now Yale). New York: Penguin. ISBN 0-14-056036-X.
- Lawrence, C.H (2001). Medieval Monasticism: Forms of Religious Life in Western Europe in the Middle Ages (Third ed.). Harlow, UK: Longman. ISBN 0-582-40427-4.
- Lightbown, Ronald W. (1978). Secular Goldsmiths' Work in Medieval France: A History. Reports of the Research Committee of the Society of Antiquaries of London. London: Thames and Hudson. ISBN 0-500-99027-1.
- Lindberg, David C.; Numbers, Ronald L. (1986). "Beyond War and Peace: A Reappraisal of the Encounter between Christianity and Science". Church History. 55 (3): 338–354. doi: 10.2307/3166822. JSTOR 3166822.
- Lindberg, David C. (2003). "The Medieval Church Encounters the Classical Tradition: Saint Augustine, Roger Bacon, and the Handmaiden Metaphor". In Lindberg, David C.; Numbers, Ronald L. (eds.). When Science & Christianity Meet. Chicago, IL: University of Chicago Press. ISBN 0-226-48214-6.
- Lock, Peter (2006). Routledge Companion to the Crusades. New York: Routledge. ISBN 0-415-39312-4.
- Loyn, H. R. (1989). "Avignon". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. p. 45. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Famine". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 127–128. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Great Schism". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. p. 153. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Hundred Years' War". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. p. 176. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Jews". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 190–192. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Knights of the Temple (Templars)". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 201–202. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Language and dialect". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. p. 204. ISBN 0-500-27645-5.
- Loyn, H. R. (1989). "Scholasticism". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 293–294. ISBN 0-500-27645-5.
- Martin, Janet (1993). Medieval Russia 980–1584. Cambridge Medieval Textbooks. Cambridge, UK: Cambridge University Press. ISBN 0-521-36832-4.
- "Mediaeval". The Compact Edition of the Oxford English Dictionary: Complete Text Arranged Micrographically: Volume I A–0. Glasgow: Oxford University Press. 1971. p. M290. LCCN 72177361. OCLC 490339790.
- "Middle Ages". Dictionary.com. 2004. Retrieved 7 April 2012.
- Miglio, Massimo (2006). "Curial Humanism seen through the Prism of the Papal Library". In Mazzocco, Angelo (ed.). Interpretations of Renaissance Humanism. Brill's Studies in Intellectual History. Leiden: Brill. pp. 97–112. ISBN 978-90-04-15244-1.
- McCormick, Michael (2010). Origins of the European Economy: Communications and Commerce, AD 300–900. Cambridge, UK: Cambridge University Press. ISBN 0-521-66102-1.
- Mommsen, Theodore E. (April 1942). "Petrarch's Conception of the 'Dark Ages'". Speculum. 17 (2): 226–242. doi: 10.2307/2856364. JSTOR 2856364.
- Morris, Rosemary (1998). "Northern Europe invades the Mediterranean, 900–1200". In Holmes, George (ed.). The Oxford Illustrated History of Medieval Europe. Oxford, UK: Oxford University Press. pp. 175–234. ISBN 0-19-285220-5.
- Murray, Alexander (2004). "Should the Middle Ages Be Abolished?". Essays in Medieval Studies. 21: 1–22. doi: 10.1353/ems.2005.0010.
- Nees, Lawrence (2002). Early Medieval Art. Oxford History of Art. Oxford, UK: Oxford University Press. ISBN 978-0-19-284243-5.
- Nicolle, David (1999). Medieval Warfare Source Book: Warfare In Western Christendom. London: Brockhampton Press. ISBN 1-86019-889-9.
- Numbers, Ronald (11 May 2006). "Myths and Truths in Science and Religion: A historical perspective" (PDF). Lecture archive. The Faraday Institute for Science and Religion. Retrieved 25 January 2013.
- Payne, Robert (2000). The Dream and the Tomb: A History of the Crusades (First paperback ed.). New York: Cooper Square Press. ISBN 0-8154-1086-7.
- Peters, Ted (2005). "Science and Religion". In Jones, Lindsay (ed.). Encyclopedia of Religion. Vol. 12 (Second ed.). Detroit, MI: MacMillan Reference. p. 8182. ISBN 978-0-02-865980-0.
- Pounds, N. J. G. (1990). An Historical Geography of Europe. Cambridge, UK: Cambridge University Press. ISBN 0521322170.
- Power, Daniel (2006). The Central Middle Ages: Europe 950–1320. The Short Oxford History of Europe. Oxford, UK: Oxford University Press. ISBN 978-0-19-925312-8.
- Riley-Smith, Jonathan (1989). "Crusades". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 106–107. ISBN 0-500-27645-5.
- Rosenwein, Barbara H. (1982). Rhinoceros Bound: Cluny in the Tenth Century. Philadelphia, PA: University of Pennsylvania Press. ISBN 0-8122-7830-5.
- Russell, Jeffey Burton (1991). Inventing the Flat Earth-Columbus and Modern Historians. Westport, CT: Praeger. ISBN 0-275-95904-X.
- Saul, Nigel (2000). A Companion to Medieval England 1066–1485. Stroud, UK: Tempus. ISBN 0-7524-2969-8.
- Schove, D. Justin (1989). "Plague". In Loyn, H. R. (ed.). The Middle Ages: A Concise Encyclopedia. London: Thames and Hudson. pp. 267–269. ISBN 0-500-27645-5.
- Singman, Jeffrey L. (1999). Daily Life in Medieval Europe. Daily Life Through History. Westport, CT: Greenwood Press. ISBN 0-313-30273-1.
- Stalley, Roger (1999). Early Medieval Architecture. Oxford History of Art. Oxford, UK: Oxford University Press. ISBN 978-0-19-284223-7.
- Tansey, Richard G.; Gardner, Helen Louise; De la Croix, Horst (1986). Gardner's Art Through the Ages (Eighth ed.). San Diego, CA: Harcourt Brace Jovanovich. ISBN 0-15-503763-3.
- Thomson, John A. F. (1998). The Western Church in the Middle Ages. London: Arnold. ISBN 0-340-60118-3.
- Vale, Malcolm (1998). "The Civilization of Courts and Cities in the North, 1200–1500". In Holmes, George (ed.). The Oxford Illustrated History of Medieval Europe. Oxford, UK: Oxford University Press. pp. 297–351. ISBN 0-19-285220-5.
- Watts, John (2009). The Making of Polities: Europe, 1300–1500. Cambridge Medieval Textbooks. Cambridge, UK: Cambridge University Press. ISBN 978-0-521-79664-4.
- Whitton, David (1998). "The Society of Northern Europe in the High Middle Ages, 900–1200". In Holmes, George (ed.). The Oxford Illustrated History of Medieval Europe. Oxford, UK: Oxford University Press. pp. 115–174. ISBN 0-19-285220-5.
- Wickham, Chris (2009). The Inheritance of Rome: Illuminating the Dark Ages 400–1000. New York: Penguin Books. ISBN 978-0-14-311742-1.
- Cantor, Norman F. (1991). Inventing the Middle Ages: The Lives, Works, and Ideas of the Great Medievalists of the Twentieth Century. New York: W. Morrow. ISBN 978-0-688-09406-5.
- Gurevich, Aron (1992). Historical Anthropology of the Middle Ages. Translated by Howlett, Janet. Chicago: University of Chicago Press. ISBN 978-0-226-31083-1.
- Holmes, Catherine; Standen, Naomi (2018), "Introduction: Towards a Global Middle Ages", Past & Present, 238: 1–44, doi: 10.1093/pastj/gty030
- Reilly, Bernard F. (1993). The Medieval Spains. Cambridge Medieval Textbooks. Cambridge, UK: Cambridge University Press. ISBN 0-521-39741-3.
- Smith, Julia (2005). Europe After Rome: A New Cultural History, 500–1000. Oxford, UK: Oxford University Press. ISBN 978-0-19-924427-0.
- Stuard, Susan Mosher (1987). Women in Medieval History and Historiography. Philadelphia, PA: University of Pennsylvania Press. ISBN 978-0-8122-1290-7.
- Wickham, Chris (2016). Medieval Europe. New Haven and London: Yale University Press. ISBN 978-0-300-22221-0.
- Wilson, Peter (2016). Heart of Europe: A History of the Holy Roman Empire. Belknap Press.
- De Re Militari: The Society for Medieval Military History
- Medieval Realms Learning resources from the British Library including studies of beautiful medieval manuscripts.
- Medievalists.net News and articles about the period.
- Medieval History Database (MHDB)
- Medieval Worlds, Official Website Comparative and interdisciplinary articles about the period.
- The Labyrinth Resources for Medieval Studies.