Portrait attributed to Simplício Rodrigues de Sá

Dom Pedro I (English: Peter I; 12 October 1798 – 24 September 1834), also known as "the Liberator", was the founder and first ruler of the Empire of Brazil. As King Dom Pedro IV, he reigned briefly over Portugal, where he also became known as "the Liberator" as well as "the Soldier King". Born in Lisbon, Pedro I was the fourth child of King Dom John VI of Portugal and Queen Carlota Joaquina, and thus a member of the House of Braganza. When the country was invaded by French troops in 1807, he and his family fled to Portugal's largest and wealthiest colony, Brazil.

The outbreak of the Liberal Revolution of 1820 in Lisbon compelled Pedro I's father to return to Portugal in April 1821, leaving him to rule Brazil as regent. He had to deal with challenges from revolutionaries and insubordination by Portuguese troops, all of which he subdued. The Portuguese government's threat to revoke the political autonomy that Brazil had enjoyed since 1808 was met with widespread discontent in Brazil. Pedro I chose the Brazilian side and declared Brazil's independence from Portugal on 7 September 1822. On 12 October, he was acclaimed Brazilian emperor and by March 1824 had defeated all armies loyal to Portugal. A few months later, Pedro I crushed the short-lived Confederation of the Equator, a failed secession attempt by provincial rebels in Brazil's northeast. ( Full article...)

Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over 9.98 million square kilometres (3.85 million square miles), making it the world's second-largest country by total area. Its southern and western border with the United States, stretching 8,891 kilometres (5,525 mi), is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver.

Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and territories and a process of increasing autonomy from the United Kingdom. This widening autonomy was highlighted by the Statute of Westminster 1931 and culminated in the Canada Act 1982, which severed the vestiges of legal dependence on the Parliament of the United Kingdom. ( Full article...)

The empire during the reign of Wu Zetian ( c. 700)

The Tang dynasty ( /tɑːŋ/, [tʰǎŋ]; Chinese: 唐朝), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period. Historians generally regard the Tang as a high point in Chinese civilization, and a golden age of cosmopolitan culture. Tang territory, acquired through the military campaigns of its early rulers, rivaled that of the Han dynasty.

The Lǐ family (李) founded the dynasty, seizing power during the decline and collapse of the Sui Empire and inaugurating a period of progress and stability in the first half of the dynasty's rule. The dynasty was formally interrupted during 690–705 when Empress Wu Zetian seized the throne, proclaiming the Wu Zhou dynasty and becoming the only legitimate Chinese empress regnant. The devastating An Lushan Rebellion (755–763) shook the nation and led to the decline of central authority in the dynasty's latter half. Like the previous Sui dynasty, the Tang maintained a civil-service system by recruiting scholar-officials through standardized examinations and recommendations to office. The rise of regional military governors known as jiedushi during the 9th century undermined this civil order. The dynasty and central government went into decline by the latter half of the 9th century; agrarian rebellions resulted in mass population loss and displacement, widespread poverty, and further government dysfunction that ultimately ended the dynasty in 907. ( Full article...)

The Socialist Soviet Republic of Abkhazia (SSR Abkhazia) was a short-lived republic within the Caucasus region of the Soviet Union that covered the territory of Abkhazia, and existed from 31 March 1921 to 19 February 1931. Formed in the aftermath of the Red Army invasion of Georgia in 1921, it was independent until 16 December 1921 when it agreed to a treaty that united it with the Georgian Soviet Socialist Republic (Georgian SSR). The SSR Abkhazia was similar to an autonomous Soviet republic, though it retained nominal independence from Georgia and was given certain features only full union republics had, like its own military units. Through its status as a "treaty republic" with Georgia, Abkhazia joined the Transcaucasian Soviet Federative Socialist Republic, which united Armenian, Azerbaijani, and Georgian SSRs into one federal unit when the latter was formed in 1922. The SSR Abkhazia was abolished in 1931 and replaced with the Abkhaz Autonomous Soviet Socialist Republic within the Georgian SSR.

During its existence, the SSR Abkhazia was led by Nestor Lakoba, who served officially as the Chairman of the Council of People's Commissars but controlled the republic to such an extent that it was jokingly referred to as "Lakobistan". Due to Lakoba's close relationship with Soviet leader Joseph Stalin, collectivisation was delayed until after Abkhazia was incorporated into Georgia. Abkhazia remained a major tobacco producer in this era, growing over half of the USSR's supply. It also produced other agricultural produce, including tea, wine, and citrus fruits, leading to Abkhazia being one of the wealthiest regions in the Soviet Union. Its sub-tropical climate also made it a prime holiday destination, with Stalin and other Soviet leaders owning dachas (holiday homes) in the region and spending considerable time there. ( Full article...)

Stolt Kittiwake heading toward the Mersey Estuary, 2005

The Manchester Ship Canal is a 36-mile-long (58 km) inland waterway in the North West of England linking Manchester to the Irish Sea. Starting at the Mersey Estuary at Eastham, near Ellesmere Port, Cheshire, it generally follows the original routes of the rivers Mersey and Irwell through the historic counties of Cheshire and Lancashire. Several sets of locks lift vessels about 60 feet (18 m) to the canal's terminus in Manchester. Landmarks along its route include the Barton Swing Aqueduct, the world's only swing aqueduct, and Trafford Park, the world's first planned industrial estate and still the largest in Europe.

The rivers Mersey and Irwell were first made navigable in the early 18th century. Goods were also transported on the Runcorn extension of the Bridgewater Canal (from 1776) and the Liverpool and Manchester Railway (from 1830), but by the late 19th century the Mersey and Irwell Navigation had fallen into disrepair and was often unusable. In addition, Manchester's business community viewed the charges imposed by Liverpool's docks and the railway companies as excessive. A ship canal was therefore proposed to give ocean-going vessels direct access to Manchester. The region was suffering from the Long Depression; the canal's proponents argued that the scheme would boost competition and create jobs. They built public support for the scheme, which was first presented to Parliament as a bill in 1882. Faced with stiff opposition from Liverpool, the canal's supporters were unable to gain the necessary Act of Parliament to allow the scheme to go ahead until 1885. ( Full article...)

Engraving of a portrait of Fakhr al-Din by Giovanni Mariti, 1787

Fakhr al-Din ibn Qurqumaz Ma'n ( Arabic: فَخْر ٱلدِّين بِن قُرْقُمَاز مَعْن, romanized: Fakhr al-Dīn ibn Qurqumaz Maʿn; c. 1572 – March or April 1635), commonly known as Fakhr al-Din II or Fakhreddine II ( Arabic: فخر الدين الثاني, romanized: Fakhr al-Dīn al-Thānī), was the paramount Druze emir of Mount Lebanon from the Ma'n dynasty, an Ottoman governor of Sidon-Beirut and Safed, and the strongman over much of the Levant from the 1620s to 1633. For uniting modern Lebanon's constituent parts and communities, especially the Druze and the Maronites, under a single authority for the first time in history, he is generally regarded as the country's founder. Although he ruled in the name of the Ottomans, he acted with considerable autonomy and developed close ties with European powers in defiance of the Ottoman imperial government.

Fakhr al-Din succeeded his father as the emir of the Chouf mountains in 1591. He was appointed over the sanjaks (districts) of Sidon-Beirut in 1593 and Safed in 1602. Despite joining the rebellion of Ali Janbulad in 1606, Fakhr al-Din remained in his post and the Ottomans recognized his takeover of the Keserwan mountains from his rival Yusuf Sayfa. Seven years later, an imperial campaign was launched against him for allying with Tuscany and garrisoning the strategic fortresses of Shaqif Arnun and Subayba. He escaped and became an exile in Tuscany and Sicily. Upon his return in 1618, he resumed control of his former domains and within three years took over northern Mount Lebanon, which was predominantly Maronite. After Fakhr al-Din routed the governor of Damascus at the Battle of Anjar in 1623, he extended his control to the Beqaa Valley, the stronghold of his rivals, the Harfush dynasty. Fakhr al-Din proceeded to capture fortresses across central Syria, gained practical control of Tripoli and its eyalet, and acquired tax farms as far north as Latakia. Although he frequently attained government favor by timely forwarding of tax revenue, bribing officials, and using opportunities of mutual interest to eliminate local rivals, his outsized power and autonomy were considered a rebellion by the imperial government. A near-contemporary historian remarked that "the only thing left for him to do was to claim the Sultanate". He surrendered to the Ottomans during a siege of his Chouf hideout in 1633 and was executed in Constantinople two years later. In 1697 Fakhr al-Din's grandnephew was awarded a tax farm spanning southern Mount Lebanon. It was gradually expanded by the Ma'ns' marital relatives, the Shihabs, in 1711, and was a precursor to the Lebanese Republic. ( Full article...)

Traprock cliffs on Chauncey Peak, Connecticut

The Metacomet Ridge, Metacomet Ridge Mountains, or Metacomet Range of southern New England is a narrow and steep fault-block mountain ridge known for its extensive cliff faces, scenic vistas, microclimate ecosystems, and rare or endangered plants. The ridge is an important recreation resource located within 10 miles (16 km) of more than 1.5 million people, offering four long-distance hiking trails and over a dozen parks and recreation areas, including several historic sites. It has been the focus of ongoing conservation efforts because of its natural, historic, and recreational value, involving municipal, state, and national agencies and nearly two dozen non-profit organizations.

The Metacomet Ridge extends from Branford, Connecticut, on Long Island Sound, through the Connecticut River Valley region of Massachusetts, to northern Franklin County, Massachusetts, 2 miles (3 km) short of the Vermont and New Hampshire borders for a distance of 100 miles (160 km). It is geologically distinct from the nearby Appalachian Mountains and surrounding uplands, and is composed of volcanic basalt (also known as trap rock) and sedimentary rock in faulted and tilted layers many hundreds of feet thick. In most cases, the basalt layers are dominant, prevalent, and exposed. The ridge rises dramatically from much lower valley elevations, although only 1,200 feet (370 m) above sea level at its highest, with an average summit elevation of 725 feet (221 m). ( Full article...)

The Sayfo or the Seyfo ( lit. 'sword'; see below), also known as the Assyrian genocide, was the mass slaughter and deportation of Assyrian/ Syriac Christians in southeastern Anatolia and Persia's Azerbaijan province by Ottoman forces and some Kurdish tribes during World War I.


The Assyrians were divided into mutually antagonistic churches, including the Syriac Orthodox Church, the Church of the East, and the Chaldean Catholic Church. Before World War I, they lived in mountainous and remote areas of the Ottoman Empire (some of which were effectively stateless). The empire's nineteenth-century centralization efforts led to increased violence and danger for the Assyrians. ( Full article...)

Farne Islands

The Arctic tern (Sterna paradisaea) is a tern in the family Laridae. This bird has a circumpolar breeding distribution covering the Arctic and sub-Arctic regions of Europe (as far south as Brittany), Asia, and North America (as far south as Massachusetts). The species is strongly migratory, seeing two summers each year as it migrates along a convoluted route from its northern breeding grounds to the Antarctic coast for the southern summer and back again about six months later. Recent studies have shown average annual round-trip lengths of about 70,900 km (44,100 mi) for birds nesting in Iceland and Greenland and about 48,700 km (30,300 mi) for birds nesting in the Netherlands. These are by far the longest migrations known in the animal kingdom. The Arctic tern nests once every one to three years (depending on its mating cycle).

Arctic terns are medium-sized birds. They have a length of 28–39 cm (11–15 in) and a wingspan of 65–75 cm (26–30 in). They are mainly grey and white plumaged, with a red/orange beak and feet, white forehead, a black nape and crown (streaked white), and white cheeks. The grey mantle is 305 mm (12.0 in), and the scapulae are fringed brown, some tipped white. The upper wing is grey with a white leading edge, and the collar is completely white, as is the rump. The deeply forked tail is whitish, with grey outer webs. ( Full article...)

First Marshalsea Prison, 18th century

The Marshalsea (1373–1842) was a notorious prison in Southwark, just south of the River Thames. Although it housed a variety of prisoners, including men accused of crimes at sea and political figures charged with sedition, it became known, in particular, for its incarceration of the poorest of London's debtors. Over half the population of England's prisoners in the 18th century were in jail because of debt.

Run privately for profit, as were all English prisons until the 19th century, the Marshalsea looked like an Oxbridge college and functioned as an extortion racket. Debtors in the 18th century who could afford the prison fees had access to a bar, shop and restaurant, and retained the crucial privilege of being allowed out during the day, which gave them a chance to earn money for their creditors. Everyone else was crammed into one of nine small rooms with dozens of others, possibly for years for the most modest of debts, which increased as unpaid prison fees accumulated. The poorest faced starvation and, if they crossed the jailers, torture with skullcaps and thumbscrews. A parliamentary committee reported in 1729 that 300 inmates had starved to death within a three-month period, and that eight to ten were dying every 24 hours in the warmer weather. ( Full article...)

Looking west over the scrape, an area of shallow water and bare mud

RSPB Minsmere is a nature reserve owned and managed by the Royal Society for the Protection of Birds (RSPB) at Minsmere, Suffolk. The 1,000-hectare (2,500-acre) site has been managed by the RSPB since 1947 and covers areas of reed bed, lowland heath, acid grassland, wet grassland, woodland and shingle vegetation. It lies within the Suffolk Coast and Heaths Area of Outstanding Natural Beauty and the Suffolk Heritage Coast area. It is conserved as a Site of Special Scientific Interest, Special Area of Conservation, Special Protection Area and Ramsar site.

The nature reserve is managed primarily for bird conservation, particularly through control and improvement of wetland, heath and grassland habitats, with particular emphasis on encouraging nationally uncommon breeding species such as the bittern, stone-curlew, marsh harrier, nightjar and nightingale. The diversity of habitats has also led to a wide variety of other animals and plants being recorded on the site. ( Full article...)

Der Überfall bei Hochkirch am 14. Oktober 1758, Hyacinthe de la Pegna

The Battle of Hochkirch took place on 14 October 1758, during the Third Silesian War (part of the Seven Years' War). After several weeks of maneuvering for position, an Austrian army of 80,000 commanded by Lieutenant Field Marshal Leopold Josef Graf Daun surprised the Prussian army of 30,000–36,000 commanded by Frederick the Great. The Austrian army overwhelmed the Prussians and forced a general retreat. The battle took place in and around the village of Hochkirch, 9 kilometers (6 mi) east of Bautzen, Saxony.

Historians generally consider the battle as among Frederick's greatest blunders. Contrary to the advice of his subordinates, he refused to believe that the typically cautious Austrian commander Leopold von Daun would bring his troops into battle. The Austrian force ambushed his army in a pre-dawn attack. Over 30% of Frederick's army was defeated; five generals were killed and he lost his artillery park and a vast quantity of supplies. Although Daun had scored a complete surprise, his attempt to pursue the retreating Prussians was unsuccessful. The escaped force united with another corps in the vicinity, and regained momentum over the winter. ( Full article...)

Zion Canyon from Angels Landing at sunset

Zion National Park is an American national park located in southwestern Utah near the town of Springdale. Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert regions, the park has a unique geography and a variety of life zones that allow for unusual plant and animal diversity. Numerous plant species as well as 289 species of birds, 75 mammals (including 19 species of bat), and 32 reptiles inhabit the park's four life zones: desert, riparian, woodland, and coniferous forest. Zion National Park includes mountains, canyons, buttes, mesas, monoliths, rivers, slot canyons, and natural arches. The lowest point in the park is 3,666 ft (1,117 m) at Coalpits Wash and the highest peak is 8,726 ft (2,660 m) at Horse Ranch Mountain. A prominent feature of the 229-square-mile (590 km²) park is Zion Canyon, which is 15 miles (24 km) long and up to 2,640 ft (800 m) deep. The canyon walls are reddish and tan-colored Navajo Sandstone eroded by the North Fork of the Virgin River.

Human habitation of the area started about 8,000 years ago with small family groups of Native Americans, one of which was the semi-nomadic Basketmaker Ancestral Puebloans (who used to be called Anasazi by early non-indigenous archeologists)( c. 300 CE). Subsequently, what has been called the Virgin Anasazi culture ( c. 500) and the Parowan Fremont group developed as the Basketmakers settled in permanent communities. Both groups moved away by 1300 and were replaced by the Parrusits and several other Southern Paiute subtribes. Mormons came into the area in 1858 and settled there in the early 1860s. In 1909, President William Howard Taft named the area Mukuntuweap National Monument in order to protect the canyon. In 1918, the acting director of the newly created National Park Service, Horace Albright, drafted a proposal to enlarge the existing monument and change the park's name to Zion National Monument, Zion being a term used by the Mormons. According to historian Hal Rothman: "The name change played to a prevalent bias of the time. Many believed that Spanish and Indian names would deter visitors who, if they could not pronounce the name of a place, might not bother to visit it. The new name, Zion, had greater appeal to an ethnocentric audience." On November 19, 1919, Congress redesignated the monument as Zion National Park, and the act was signed by President Woodrow Wilson. The Kolob section was proclaimed a separate Zion National Monument in 1937, but was incorporated into the national park in 1956. Congress designated 85% of the park a wilderness area in 2009. ( Full article...)

SMS Goeben

SMS Goeben was the second of two Moltke-class battlecruisers of the Imperial German Navy, launched in 1911 and named after the German Franco-Prussian War veteran General August Karl von Goeben. Along with her sister ship, Goeben was similar to the previous German battlecruiser design, Von der Tann, but larger, with increased armor protection and two more main guns in an additional turret. Goeben and Moltke were significantly larger and better armored than the comparable British Indefatigable class.

Several months after her commissioning in 1912, Goeben, with the light cruiser Breslau, formed the German Mediterranean Division and patrolled there during the Balkan Wars. After the outbreak of World War I on 28 July 1914, Goeben and Breslau bombarded French positions in North Africa and then evaded British naval forces in the Mediterranean and reached Constantinople. The two ships were transferred to the Ottoman Empire on 16 August 1914, and Goeben became the flagship of the Ottoman Navy as Yavuz Sultan Selim, usually shortened to Yavuz. By bombarding Russian facilities in the Black Sea, she brought Turkey into World War I on the German side. The ship operated primarily against Russian forces in the Black Sea during the war, including several inconclusive engagements with Russian battleships. She made a sortie into the Aegean in January 1918 that resulted in the Battle of Imbros, where Yavuz sank a pair of British monitors but was herself badly damaged by mines. ( Full article...)

The Tepees

Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands. The park's headquarters is about 26 miles (42 km) east of Holbrook along Interstate 40 (I-40), which parallels the BNSF Railway's Southern Transcon, the Puerco River, and historic U.S. Route 66, all crossing the park roughly east–west. The site, the northern part of which extends into the Painted Desert, was declared a national monument in 1906 and a national park in 1962. The park received 644,922 recreational visitors in 2018.

Averaging about 5,400 feet (1,600 m) in elevation, the park has a dry windy climate with temperatures that vary from summer highs of about 100 °F (38 °C) to winter lows well below freezing. More than 400 species of plants, dominated by grasses such as bunchgrass, blue grama, and sacaton, are found in the park. Fauna include larger animals such as pronghorns, coyotes, and bobcats, many smaller animals, such as deer mice, snakes, lizards, seven kinds of amphibians, and more than 200 species of birds, some of which are permanent residents and many of which are migratory. About one third of the park is designated wilderness—50,260 acres (79 sq mi; 203 km²). ( Full article...)

Clockwise from top: City of London in the foreground with Canary Wharf in the far background; Trafalgar Square; London Eye; Tower Bridge; and a London Underground roundel in front of Elizabeth Tower

London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a 50-mile (80 km) estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as Londinium and retains its medieval boundaries. The City of Westminster, to the west of the City of London, has for centuries hosted the national government and parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which since 1965 has largely comprised Greater London, which is governed by 33 local authorities and the Greater London Authority. ( Full article...)

Generation Z (or more commonly Gen Z for short), colloquially known as zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha. Researchers and popular media use the mid-to-late 1990s as starting birth years and the early 2010s as ending birth years. Most members of Generation Z are children of Generation X. ( Full article...)

England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea area of the Atlantic Ocean to the southwest. It is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain, which lies in the North Atlantic, and includes over 100 smaller islands, such as the Isles of Scilly and the Isle of Wight. ( Full article...)

The United States of America is a federal republic consisting of 50 states, a federal district ( Washington, D.C., the capital city of the United States), five major territories, and various minor islands. Both the states and the United States as a whole are each sovereign jurisdictions. The Tenth Amendment to the United States Constitution allows states to exercise all powers of government not delegated to the federal government. Each state has its own constitution and government, and all states and their residents are represented in the federal Congress, a bicameral legislature consisting of the Senate and the House of Representatives. Each state is represented by two senators, while representatives are distributed among the states in proportion to the most recent constitutionally mandated decennial census. Additionally, each state is entitled to select a number of electors to vote in the Electoral College, the body that elects the president of the United States, equal to the total of representatives and senators in Congress from that state. The federal district does not have representatives in the Senate, but has a non-voting delegate in the House, and it is also entitled to electors in the Electoral College. Congress can admit more states, but it cannot create a new state from territory of an existing state or merge of two or more states into one without the consent of all states involved, and each new state is admitted on an equal footing with the existing states. ( Full article...)

Google Maps is a web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets ( Street View), real-time traffic conditions, and route planning for traveling by foot, car, bike, air (in beta) and public transportation. , Google Maps was being used by over 1 billion people every month around the world. ( Full article...)

North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as a part of North America geographically. ( Full article...)

Millennials, also known as Generation Y or Gen Y, are the demographic cohort following Generation X and preceding Generation Z. Researchers and popular media use the early 1980s as starting birth years and the mid-1990s to early 2000s as ending birth years, with the generation typically being defined as people born from 1981 to 1996. Most millennials are the children of baby boomers and older Generation X; millennials are often the parents of Generation Alpha. ( Full article...)

Europe is a continent which is part of Eurasia and is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. ( Full article...)

This is a list of countries and dependencies by population. It includes sovereign states, inhabited dependent territories and, in some cases, constituent countries of sovereign states, with inclusion within the list being primarily based on the ISO standard ISO 3166-1. For instance, the United Kingdom is considered a single entity, while the constituent countries of the Kingdom of the Netherlands are considered separately. In addition, this list includes certain states with limited recognition not found in ISO 3166-1. Also given in a percentage is each country's population compared with the world population, which the United Nations estimates at 7.954 billion . ( Full article...)

Washington, D.C., formally the District of Columbia, also known as Washington, the District, or D.C., is the capital city and federal district of the United States. The city is located on the east bank of the Potomac River, which forms its southwestern border with Virginia, and it borders Maryland to its north and east. The city was named for George Washington, a Founding Father, commanding general of the Continental Army during the Revolutionary War, and the first president of the United States, and the district is named after Columbia, the female personification of the nation. ( Full article...)