Establishments – Disestablishments
In China the Song dynasty was established. The Muslim World experienced a cultural zenith, especially in al-Andalus under the Caliphate of Córdoba and in Samanid Empire under Ismail Samani. Additionally, there was cultural flourishing for the Byzantine Empire and the First Bulgarian Empire.
The Medievalist and historian of technology Lynn White said that "to the modern eye, it is very nearly the darkest of the Dark Ages", but concluded that ". . . if it was dark, it was the darkness of the womb."  Similarly, Helen Waddell wrote that the 10th century was that which "in the textbooks disputes with the seventh the bad eminence, the nadir of the human intellect."  In the 15th century, Lorenzo Valla described it as the Century of Lead and Iron and later Cardinal Baronius as the Leaden Century or Iron Century.
- The beginning of the Medieval Warm Period
- The Byzantine Empire reaches the height of its military and economic strength
- c. 909: The Fatimid Caliphate arises in Kabylie, Kutama Tribe
- c. 948: The Nri Kingdom in what is now Southeastern Nigeria starts.
- c. 980: Al-Azhar University is established in Cairo by the Fatimid dynasty.
- The Christian Nubian kingdom reaches its peak of prosperity and military power ( Early history of Sudan)
- Collapse of the central lowland Maya civilization. Post-Classic Maya period begins. Chichen Itza becomes a regional capital on the Yucatán Peninsula
- Rise of the Toltecs in Mexico
- Golden age of the Ancestral Puebloans ( Pueblo II Era)
- The Mississippian culture begins in present-day Southern United States
- In 987 Ah Mekat Tutul Xiu unified Uxmal, Mayapan, and Chichen Itza founding The League of Mayapan.
- Buddhist temple construction commences at Bagan, Burma
- Seafarers and merchants from Champa had contacts with Brunei and Ma-i. 
- In 907, Zhu Quanzhong deposes Emperor Ai of Tang and establishes a new Later Liang dynasty.
- In 907, Sumbing volcano erupts, according to Rukam inscription.
- In 907, King Balitung creates the Mantyasih inscription containing the list of Medang kings, moves the capital from Mamrati to Poh Pitu, and expands Prambanan temple.
- In 910, Parantaka I of the Chola Dynasty drives out the Pandyan from southern India into Lanka (now Sri Lanka), which he also eventually conquers.
- In 914, The Warmadewa dynasty rules Bali.  (to 1080)
- In 919, the first use of gunpowder in battle occurs with the Chinese Battle of Langshan Jiang (Wolf Mountain River), where the Wuyue naval fleet under Qian Yuanguan defeats the Wu fleet. Qian had used flamethrowers ignited by gunpowder fuses to burn the Wu fleet.
- In 928, Ziyarid dynasty is established in northern Iran.
- In 928, During the reign of King Wawa, the capital of Medang Kingdom in Mataram is devastated, probably by the massive eruption of Mount Merapi.
- In 929, Mpu Sindok moves the seat of power of the Medang Kingdom from Mataram in Central Java to Tamwlang in East Java and establishes Isyana Dynasty. The shift is probably as a result of the eruption of Mount Merapi and/or invasion from Srivijaya. 
- In 930s, Persian Shia Buyid dynasty establishes and controls central and western part of Iran as well as most of Iraq.
- In 936, Goryeo Dynasty unifies Later Three Kingdoms of Korea.
- In 937, Mpu Sindok moves the capital again from Tamwlang to Watugaluh, both near bank of Brantas River in modern Jombang in East Java.
- In 960, Zhao Kuangyin establishes Song dynasty.
- In 960 Seljuks convert to Islam.
- In 971, Song Dynasty recorded the ancient sovereign state of Ma-i on the list of states conducting trade in the south seas and the government's efforts to regulate and tax this "luxurious" trade.
- In 975, Ghaznavids dynasty, as the first Turk Sultanate, was established in Central Asia.
- In 979, Song dynasty reunites China.
- In 980's, Dynastic marriage between princess Mahendradatta of Javanese Isyanas and king Udayana of Balinese Warmadewas.
- Coastal cities on the Malay Peninsula are the seed for the first recorded Malay kingdoms
- In 990, King Dharmawangsa of Medang kingdom launches a naval invasion on Palembang in an unsuccessful attempt to conquer Srivijaya. (to 1006)
- In 990, Airlangga, son of King Udayana and Queen Mahendradatta was born in Bali.
- In 996, Dharmawangsa commissioned the translation of the Mahabharata into Old Javanese. 
- In 999, Samanid dynasty was defeated and conquered by Ghaznavids.
- Viking groups settle in northern France
- 907: Loire Vikings overrun Brittany; Breton court flees to the England of Edward the Elder.
- The Norse become Normans
- The Hungarian army destroys the Bavarian forces under duke Liutpold and king Louis the Child in the Battle of Pressburg. All the German force is annihilated.
- 911: The Viking Rollo granted County of Rouen by France: official foundation of Normandy.
- Foundation of Cluny, first federated monastic order
- Emperor Simeon the Great solidifies the First Bulgarian Empire as one of the most powerful states in Europe
- In 917 (20 August 917) the Bulgarians destroyed the Byzantine army in the Battle of Anchialus, one of the bloodiest battles in the Middle Ages
- 927: official recognition of the first independent national Church in Europe, the Bulgarian Patriarchate
- 927: Kingdom of England becomes a unified state.
- c. 936: Gorm the Old becomes the first recognized king of Denmark, and thus the Danish Monarchy is founded.
- 936: Alan II, with support from Æthelstan, commences the reconquest of Brittany.
- 955: The Battle of Lechfeld (10 August 955) sees a decisive victory for Otto I the Great, King of the Germans, over the Hungarian harka Bulcsú and the chieftains Lél (Lehel) and Súr.
- 968: Battle of Silistra between Russians and Bulgars
- Incursions of Magyar (Hungarian) cavalry throughout Western Europe (47 expeditions in Germany, Italy and France, 899– 970)
- Mieszko I, first duke of Poland, baptised a Christian in 966
- Collapse of Great Moravia
- 985-986: The Norseman Erik the Red begins the colonisation of Greenland.
- The medieval Croatian state becomes a unified kingdom under King Tomislav
- Swedish influence extends to the Black Sea
- Vladimir I, Prince of Kievan Rus', baptised a Christian in 988
- Reindeer and bears become extinct in Britain
- Lions become extinct in Europe by this date, with the last dying in Caucasus.
- Second half of the 10th century – Page with David the Psalmist, from the Paris Psalter, is made. It is now kept at Bibliothéque Nationale, Paris.
- Late 10th or early 11th century – Archangel Michail, icon, is made. It is now kept at Treasury of the Cathedral of Saint Mark, Venice
- Around 1000: Establishment of the Eastern Settlement and Western Settlement in Greenland.
- List of 9th-10th centuries inventions
- 10th century-12th century - Seated Guaryin Bodhisattva, is made. Liao dynasty. It is now kept at The Nelson-Atkins Museum of Art, Kansas City, Missouri.
- Construction begins on the Brihadeeswarar Temple of India, during the reign of Rajaraja Chola I
- The first pound lock is invented by the Chinese engineer Qiao Weiyo, improving the canal lock system.
- Fire arrows are invented by the Chinese.
- Earliest known occurrence in Mexico of Lost-wax casting.
- Three of the Four Great Books of Song are published (the last one in 1013), which were enormous Chinese encyclopedias having millions of written Chinese characters each.
- Hops first mentioned in connection with beer brewing
- Zhang Sixun of China uses for the first time liquid mercury (element) instead of water to power the escapement mechanism rotating an armillary sphere, since liquid mercury does not freeze easily like water during winter, and does not rust metal parts
- Quoted in The Tenth Century: How Dark the Dark Ages?, edited by Robert Sabatino Lopez. Holt, Rinehart and Winston: 1959.
- The Wandering Scholars. Constable and Co: London, 1927.
- "Asian maritime & trade chronology to 1700 CE". Maritime Asia.
- Soekmono, R, Drs., Pengantar Sejarah Kebudayaan Indonesia 2, 2nd ed. Penerbit Kanisius, Yogyakarta, 1973, 5th reprint edition in 1988 p.52
- Spuler, Bertold; F.R.C. Bagley. The Muslim world : a historical survey, Part 4. Brill Archive. p. 252. ISBN 978-90-04-06196-5.
- Soekmono, R, Drs., Pengantar Sejarah Kebudayaan Indonesia 2, 2nd ed. Penerbit Kanisius, Yogyakarta, 1973, 5th reprint edition in 1988 p.51