The United States of America (USA), commonly known as the United States (U.S.) or America, is a country primarily located in North America. The third-largest country in the world by land and total area, the U.S. consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands and includes 326 Indian reservations. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with several other countries. With a population of over 334 million, it is the most populous country in the Americas and the third-most populous in the world. The national capital of the United States is Washington, D.C., and its most populous city and principal financial center is New York City.

Ancestors of America's indigenous peoples migrated across the Bering land bridge more than 12,000 years ago. Beginning in 1607, British colonization led to the establishment of the Thirteen Colonies in what is now the Eastern United States. They clashed with the British Crown over taxation and political representation, which led to the American Revolution and the ensuing Revolutionary War. The United States declared independence on July 4, 1776, and went on to become the first country founded on Enlightenment principles of unalienable natural rights, consent of the governed, and republicanism.

Following a series of treaties, conflicts, and acquisitions, the United States expanded across North America. As more states were admitted, sectional division over slavery led to the secession of the Confederate States of America, which fought the remaining states of the Union during the American Civil War (1861–65). With the Union's victory and preservation, slavery was abolished nationally, but relations between different races remained problematic. Industrialization during the late 19th and early 20th centuries led to rapid economic development but also socioeconomic disparities that prompted calls for reforms. (Full article...)

India, officially the Republic of India (ISO: Bhārat Gaṇarājya), is a country in South Asia. It is the most populous country as well as the seventh-largest country by area, and has a democratic form of government. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia.

Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago. Their long occupation, initially in varying forms of isolation as hunter-gatherers, has made the region highly diverse, second only to Africa in human genetic diversity. Settled life emerged on the subcontinent in the western margins of the Indus river basin 9,000 years ago, evolving gradually into the Indus Valley Civilisation of the third millennium BCE.
By 1200 BCE, an archaic form of Sanskrit, an Indo-European language, had diffused into India from the northwest. Its evidence today is found in the hymns of the Rigveda. Preserved by an oral tradition that was resolutely vigilant, the Rigveda records the dawning of Hinduism in India. The Dravidian languages of India were supplanted in the northern and western regions.
By 400 BCE, stratification and exclusion by caste had emerged within Hinduism,
and Buddhism and Jainism had arisen, proclaiming social orders unlinked to heredity.
Early political consolidations gave rise to the loose-knit Maurya and Gupta Empires based in the Ganges Basin.
Their collective era was suffused with wide-ranging creativity, but also marked by the declining status of women, and the incorporation of untouchability into an organised system of belief. In South India, the Middle kingdoms exported Dravidian-languages scripts and religious cultures to the kingdoms of Southeast Asia.

In the early medieval era, Christianity, Islam, Judaism, and Zoroastrianism became established on India's southern and western coasts.
Muslim armies from Central Asia intermittently overran India's northern plains,
eventually founding the Delhi Sultanate, and drawing northern India into the cosmopolitan networks of medieval Islam.
In the 15th century, the Vijayanagara Empire created a long-lasting composite Hindu culture in south India.
In the Punjab, Sikhism emerged, rejecting institutionalised religion.
The Mughal Empire, in 1526, ushered in two centuries of relative peace,
leaving a legacy of luminous architecture.
Gradually expanding rule of the British East India Company followed, turning India into a colonial economy, but also consolidating its sovereignty. British Crown rule began in 1858. The rights promised to Indians were granted slowly, but technological changes were introduced, and modern ideas of education and the public life took root. A pioneering and influential nationalist movement emerged, which was noted for nonviolent resistance and became the major factor in ending British rule. In 1947 the British Indian Empire was partitioned into two independent dominions, a Hindu-majority Dominion of India and a Muslim-majority Dominion of Pakistan, amid large-scale loss of life and an unprecedented migration. (Full article...)

Israel (/ˈɪzri.əl, -reɪ-/; Hebrew: יִשְׂרָאֵל Yisrāʾēl [jisʁaˈʔel]; Arabic: إِسْرَائِيل ʾIsrāʾīl), officially the State of Israel (מְדִינַת יִשְׂרָאֵל Medīnat Yisrāʾēl [mediˈnat jisʁaˈʔel]; دَوْلَة إِسْرَائِيل Dawlat Isrāʾīl), is a country in West Asia. It is bordered by Lebanon to the north, Syria to the northeast, Jordan to the east, the Red Sea to the south, Egypt to the southwest, the Mediterranean Sea to the west, and the Palestinian territories – the West Bank along the east and the Gaza Strip along the southwest. Tel Aviv is the financial, economic, and technological center of the country, while its seat of government is in its proclaimed capital of Jerusalem, although Israeli sovereignty over East Jerusalem is unrecognized internationally.

Israel is located in the Southern Levant, a region known historically as Canaan, Palestine, or the Holy Land. In antiquity, it was home to several Israelite and Jewish kingdoms, including Israel and Judah and Hasmonean Judea, and is referred to as the Land of Israel in Jewish tradition. The region was ruled by powers such as the Assyrians, Babylonians, Achaemenids, Greeks, and Romans. During Roman rule, Jews became a minority in Palestine. The region later came under Byzantine and Arab rule. In the Middle Ages, it was part of the Islamic Caliphates, the Crusader Kingdom, and the Ottoman Empire. The late 19th century saw the rise of Zionism, a movement advocating for the establishment of a Jewish homeland, during which the Zionists began purchasing land in Palestine. Under the British Mandate placed by the League of Nations after World War I, Jewish immigration to the region increased considerably, leading to tensions between Jews and the Arab majority population. The UN-approved 1947 partition plan triggered a civil war between these two peoples. The British terminated the Mandate on 14 May 1948, and Israel declared independence on the same day.

On 15 May 1948, the armies of five neighboring Arab states invaded the area of the former Mandatory Palestine, starting the First Arab–Israeli War. An armistice in 1949 left Israel in control of more territory than the U.N. partition plan had called for; and no new independent Arab state was created as the rest of the former Mandate territory was held by Egypt and Jordan, respectively the Gaza Strip and the West Bank. The conflict resulted in the expulsion or flight of most Palestinians, while Israel absorbed Jewish immigrants and refugees. The 1967 Six-Day War resulted in the Israeli occupation of the Palestinian territories of the West Bank and Gaza Strip, along with the Egyptian Sinai Peninsula and the Syrian Golan Heights. Israel has since effectively annexed both East Jerusalem and the Golan Heights, and has established settlements across the occupied territories, actions which are deemed illegal under international law. Since the 1973 Yom Kippur War, Israel has signed peace treaties with Egypt, returning the Sinai Peninsula, and with Jordan, and more recently normalized relations with several Arab countries. However, efforts to resolve the Israeli–Palestinian conflict have not succeeded, with an ongoing war against Palestinian militant groups in the Gaza Strip occurring since 2023. Israel's practices, in the longest military occupation in modern history, have drawn international condemnation for violating the human rights of the Palestinians. (Full article...)

Guyana (/ɡaɪˈɑːnə/ ^ⓘ or /ɡaɪˈænə/ ^ⓘ, gy-A(H)N-ə), officially the Co-operative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the Atlantic Ocean to the north, Brazil to the south and southwest, Venezuela to the west, and Suriname to the east. With a land area of 215,000 km² (83,000 sq mi), Guyana is the third-smallest sovereign state by area in mainland South America after Uruguay and Suriname, and is the second-least populous sovereign state in South America after Suriname; it is also one of the least densely populated countries on Earth. It has a wide variety of natural habitats and very high biodiversity.

The region known as "the Guianas" consists of the large shield landmass north of the Amazon River and east of the Orinoco River known as the "land of many waters". Nine indigenous tribes reside in Guyana: the Wai Wai, Macushi, Patamona, Lokono, Kalina, Wapishana, Pemon, Akawaio and Warao. Historically dominated by the Lokono and Kalina tribes, Guyana was colonised by the Dutch before coming under British control in the late 18th century. It was governed as British Guiana with a mostly plantation-style economy until the 1950s. It gained independence in 1966 and officially became a republic within the Commonwealth of Nations in 1970. The legacy of British rule is reflected in the country's political administration and diverse population, which includes Indian, African, Indigenous, Chinese, Portuguese, other European, and various multiracial groups.

Guyana is the only mainland South American nation in which English is the official language. However, the majority of the population speak Guyanese Creole, an English-based creole language, as a first language. Guyana is part of the Anglophone Caribbean. It is part of the mainland Caribbean region maintaining strong cultural, historical, and political ties with other Caribbean countries as well as serving as the headquarters for the Caribbean Community (CARICOM). In 2008, the country joined the Union of South American Nations as a founding member. (Full article...)

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales, and Northern Ireland. It includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of the smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea, and the Irish Sea. The total area of the United Kingdom is 94,060 square miles (243,610 km²), with an estimated 2022 population of nearly 67 million people.

The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales) and the Kingdom of Scotland in 1707 resulted in their unification to become the Kingdom of Great Britain. Its union in 1801 with the Kingdom of Ireland created the United Kingdom of Great Britain and Ireland. Most of Ireland seceded from the UK in 1922, leaving the present United Kingdom of Great Britain and Northern Ireland, which formally adopted its name in 1927. The nearby Isle of Man, Guernsey and Jersey are not part of the UK, being Crown Dependencies, but the British government is responsible for their defence and international representation.

The UK became the first industrialised country and was the world's foremost power for the majority of the 19th and early 20th centuries, particularly during the "Pax Britannica" between 1815 and 1914. The British Empire, at its height in the 1920s, encompassed almost a quarter of the world's landmass and population, and was the largest empire in history; however, its involvement in the First World War and the Second World War damaged Britain's economic power and a global wave of decolonisation led to the independence of most British colonies. British influence can be observed in the legal and political systems of many of its former colonies, and the UK's culture remains globally influential, particularly in literature, language, music and sport. English is the world's most widely spoken language and the third-most spoken native language. (Full article...)

Palestine (Arabic: فلسطين, romanized: Filasṭīn), officially the State of Palestine (دولة فلسطين, Dawlat Filasṭīn), is a state in the Southern Levant region of West Asia. Founded on 15 November 1988 and officially governed by the Palestine Liberation Organization (PLO), it claims the West Bank (including East Jerusalem) and the Gaza Strip as its territory, all of which has been Israeli-occupied territories since the 1967 Six-Day War. The West Bank contains 165 Palestinian enclaves that are under partial Palestinian rule, but the remainder, including 200 Israeli settlements, is under full Israeli control. The Gaza Strip was governed by Egypt but conquered by Israel in 1967. Israel governed the region until it withdrew in 2005. Hamas seized power after winning the 2006 Palestinian legislative election. The Gaza Strip has since been blockaded by Israel and Egypt.

After World War II, in 1947, the United Nations (UN) adopted a Partition Plan for Mandatory Palestine, which recommended the creation of independent Arab and Jewish states and an internationalized Jerusalem. This Partition Plan was accepted by the Jews but rejected by the Arabs. Immediately after the United Nations General Assembly adopted the plan as Resolution 181, a civil war broke out in Palestine, and the plan was not implemented. The day after the establishment of the State of Israel on 14 May 1948, neighboring Arab countries invaded the former British Mandate and engaged Israeli forces in the 1948 Arab–Israeli War. Later, the All-Palestine Government was established by the Arab League on 22 September 1948 to govern the All-Palestine Protectorate in the Egyptian-occupied Gaza Strip. It was soon recognized by all Arab League members except Transjordan, which had occupied and later annexed the West Bank, including East Jerusalem. Palestine is currently recognized by 138 of the 193 United Nations (UN) member states. Though jurisdiction of the All-Palestine Government was declared to cover the whole of the former Mandatory Palestine, its effective jurisdiction was limited to the Gaza Strip. During the Six-Day War in June 1967, Israel captured the Gaza Strip and the Sinai Peninsula from Egypt, the West Bank and East Jerusalem from Jordan, and the Golan Heights from Syria.

On 15 November 1988 in Algiers, Yasser Arafat, as Chairman of the PLO, issued the Palestinian Declaration of Independence, which established the State of Palestine. A year after the signing of the Oslo Accords in 1993, the Palestinian National Authority (PNA) was formed to govern (in varying degrees) areas A and B in the West Bank, comprising 165 enclaves, and the Gaza Strip. After Hamas became the PNA parliament's leading party in the most recent elections (2006), a conflict broke out between it and the Fatah party, leading to the Gaza Strip being taken over by Hamas in 2007 (two years after the Israeli disengagement). (Full article...)

Russia (Russian: Россия, romanized: Rossiya, [rɐˈsʲijə]), or the Russian Federation, is a country spanning Eastern Europe and Northern Asia. It is the largest country in the world by area, extends across eleven time zones, and shares land boundaries with fourteen countries. It is the world's ninth-most populous country and Europe's most populous country. The country's capital and largest city is Moscow. Saint Petersburg is Russia's second-largest city and "cultural capital". Other major urban areas in the country include Novosibirsk, Yekaterinburg, Nizhny Novgorod, Chelyabinsk, Krasnoyarsk, Kazan, Krasnodar and Rostov-on-Don.

The East Slavs emerged as a recognised group in Europe between the 3rd and 8th centuries CE. The first East Slavic state, Kievan Rus', arose in the 9th century, and in 988, it adopted Orthodox Christianity from the Byzantine Empire. Rus' ultimately disintegrated, with the Grand Duchy of Moscow growing to become the Tsardom of Russia. By the early 18th century, Russia had vastly expanded through conquest, annexation, and the efforts of Russian explorers, developing into the Russian Empire, which remains the third-largest empire in history. However, with the Russian Revolution in 1917, Russia's monarchic rule was abolished and eventually replaced by the Russian SFSR—the world's first constitutionally socialist state. Following the Russian Civil War, the Russian SFSR established the Soviet Union with three other Soviet republics, within which it was the largest and principal constituent. At the expense of millions of lives, the Soviet Union underwent rapid industrialisation in the 1930s and later played a decisive role for the Allies in World War II by leading large-scale efforts on the Eastern Front. With the onset of the Cold War, it competed with the United States for global ideological influence. The Soviet era of the 20th century saw some of the most significant Russian technological achievements, including the first human-made satellite and the first human expedition into outer space.

In 1991, the Russian SFSR emerged from the dissolution of the Soviet Union as the independent Russian Federation. A new constitution was adopted, which established a federal semi-presidential system. Since the turn of the century, Russia's political system has been dominated by Vladimir Putin, under whom the country has experienced democratic backsliding and a shift towards authoritarianism. Russia has been militarily involved in a number of conflicts in neighbouring states, including its internationally unrecognised annexation of Crimea in 2014 from neighbouring Ukraine, followed by the further annexation of four other regions in 2022 during an ongoing invasion. (Full article...)

China (Chinese: 中国; pinyin: Zhōngguó), officially the People's Republic of China (PRC), is a country in East Asia. With a population exceeding 1.4 billion, it is the world's second-most-populous country. China spans the equivalent of five time zones and borders fourteen countries by land. With an area of nearly 9.6 million square kilometers (3,700,000 sq mi), it is the third-largest country by total land area. The country is divided into 22 provinces, five autonomous regions, four municipalities, and two semi-autonomous special administrative regions. Beijing is the national capital, while Shanghai is the most populous city and largest financial center.

The region has been inhabited since the Paleolithic era. The earliest Chinese dynastic states, such as the Shang and the Zhou, emerged in the basin of the Yellow River before the late second millennium BCE. The eighth to third centuries BCE saw a breakdown in Zhou authority and significant conflict, as well as the emergence of Classical Chinese literature and philosophy. In 221 BCE, China was unified under an emperor for the first time, ushering in more than two millennia in which China was governed by one or more imperial dynasties, including the Han, Tang, Yuan, Ming, and Qing. Some of China's most notable achievements—such as the invention of gunpowder and paper, the establishment of the Silk Road, and the building of the Great Wall—occurred during this period. The imperial Chinese culture—including languages, traditions, architecture, philosophy and more—has heavily influenced East Asia.

In 1912, the monarchy was overthrown and the Republic of China was established. The Republic saw consistent conflict for most of the mid-20th century, including a civil war between the Kuomintang government and the Chinese Communist Party (CCP), which began in 1927, as well as the Second Sino-Japanese War that began in 1937 and continued until 1945, therefore becoming involved in World War II. The latter led to a temporary stop in the civil war and numerous Japanese atrocities such as the Nanjing Massacre, which continue to influence China–Japan relations. In 1949, the CCP established control over China as the Kuomintang fled to Taiwan. Early communist rule saw two major projects: the Great Leap Forward, which resulted in a sharp economic decline and massive famine; and the Cultural Revolution, a movement to purge all non-communist elements of Chinese society that led to mass violence and persecution. Beginning in 1978, the Chinese government launched economic reforms that moved the country away from planned economics, but political reforms were cut short by the 1989 Tiananmen Square protests and massacre. Economic reform continued to strengthen the nation's economy in the following decades while raising China's standard of living significantly. (Full article...)

Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. Australia is the largest country by area in Oceania and the world's sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates, with deserts in the centre, tropical rainforests in the north-east, tropical savannas in the north, and mountain ranges in the south-east.

The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the last glacial period. Arriving by sea, they settled the continent and had formed approximately 250 distinct language groups by the time of European settlement, maintaining some of the longest known continuing artistic and religious traditions in the world. Australia's written history commenced with the European maritime exploration of Australia. The Dutch navigator Willem Janszoon was the first known European to reach Australia, in 1606. In 1770, the British explorer James Cook mapped and claimed the east coast of Australia for Great Britain, and the First Fleet of British ships arrived at Sydney in 1788 to establish the penal colony of New South Wales. The European population grew in subsequent decades, and by the end of the 1850s gold rush, most of the continent had been explored by European settlers and an additional five self-governing British colonies were established. Democratic parliaments were gradually established through the 19th century, culminating with a vote for the federation of the six colonies and foundation of the Commonwealth of Australia on 1 January 1901. This began a process of increasing autonomy from the United Kingdom, highlighted by the Statute of Westminster Adoption Act 1942, and culminating in the Australia Act 1986.

Australia is a federal parliamentary constitutional monarchy, comprising six states and ten territories. Australia's population of nearly 27 million is highly urbanised and heavily concentrated on the eastern seaboard. Canberra is the nation's capital, while its most populous cities are Sydney, Melbourne, Brisbane, Perth and Adelaide. It is ethnically diverse and multicultural, the product of large-scale immigration, with almost half of the population having at least one parent born overseas. Australia's abundant natural resources and well-developed international trade relations are crucial to the country's economy, which generates its income from various sources including services, mining exports, banking, manufacturing, agriculture and international education. Australia ranks highly for quality of life, health, education, economic freedom, civil liberties and political rights. (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, making it the world's second-largest country by total area, with the world's longest coastline. Its border with the United States is the world's longest international land border. The country is characterized by a wide range of both meteorologic and geological regions. It is a sparsely inhabited country of 40 million people, the vast majority residing south of the 55th parallel in urban areas. 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, highlighted by the Statute of Westminster, 1931, and culminating in the Canada Act 1982, which severed the vestiges of legal dependence on the Parliament of the United Kingdom.

Canada is a parliamentary democracy and a constitutional monarchy in the Westminster tradition. The country's head of government is the prime minister, who holds office by virtue of their ability to command the confidence of the elected House of Commons and is "called upon" by the governor general, representing the monarch of Canada, the head of state. The country is a Commonwealth realm and is officially bilingual (English and French) in the federal jurisdiction. It is very highly ranked in international measurements of government transparency, quality of life, economic competitiveness, innovation, education and gender equality. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration. Canada's long and complex relationship with the United States has had a significant impact on its history, economy, and culture. (Full article...)