The naming of the Americas , or America , occurred shortly after Christopher Columbus 's death in 1506. The earliest known use of the name America dates to April 25, 1507, when it was applied to what is now known as South America. It is generally accepted that the name derives from Amerigo Vespucci , the Italian explorer, who explored the new continents in the following years on behalf of Spain and Portugal , with the name given by German cartographer Martin Waldseemüller . However, some have suggested other explanations, including being named after the Amerrisque mountain range in Nicaragua, or after Richard Amerike , a merchant from Bristol , England.
160-514: The Americas , sometimes collectively called America , known initially as India Nova , are a landmass comprising the totality of North America and South America . When viewed as a single continent, the Americas or America is the 2nd largest continent right after Asia, and is the 3rd largest continent by population. The Americas make up most of the land in Earth 's Western Hemisphere and comprise
320-577: A lower house based on population; and the Senate , an upper house based on equal representation for each state. Federalism provides substantial autonomy to the 50 states, while the country's political culture promotes liberty , equality , individualism , personal autonomy , and limited government . One of the world's most developed countries , the United States has had the largest nominal GDP since about 1890 and accounted for over 15% of
480-405: A sea level rise of hundreds of meters following the last ice age. Both routes may have been taken, although the genetic evidences suggests a single founding population. The micro-satellite diversity and distributions specific to South American Indigenous peoples indicates that certain populations have been isolated since the initial colonization of the region. A second migration occurred after
640-524: A " Special Relationship " with the United Kingdom and strong ties with Canada , Australia , New Zealand , the Philippines , Japan , South Korea , Israel , and several European Union countries ( France , Italy , Germany , Spain , and Poland ). The U.S. works closely with its NATO allies on military and national security issues, and with countries in the Americas through
800-716: A broad cultural entity that developed along the Alaska Peninsula , around Bristol Bay , and on the eastern shores of the Bering Strait c. 2500 BCE moved into North America. The Arctic small tool tradition, a Paleo-Eskimo culture branched off into two cultural variants, including the Pre-Dorset , and the Independence traditions of Greenland. The descendants of the Pre-Dorset cultural group,
960-542: A coordinated, continent-wide military effort. Finally, deteriorating relations between the British military establishment and the colonists, relations that were already less than positive, set the stage for further distrust and dislike of British troops. Following their victory in the French and Indian War, Britain began to assert greater control over local colonial affairs, resulting in colonial political resistance ; one of
1120-534: A decentralized government that operated until 1789. After the British surrender at the siege of Yorktown in 1781 American sovereignty was internationally recognized by the Treaty of Paris (1783), through which the U.S. gained territory stretching west to the Mississippi River, north to present-day Canada, and south to Spanish Florida . The Northwest Ordinance (1787) established the precedent by which
1280-513: A few hidden documents remain today, leaving modern historians with glimpses of ancient culture and knowledge. The first inhabitants migrated into the Americas from Asia. Habitation sites are known in Alaska and Yukon from at least 20,000 years ago, with suggested ages of up to 40,000 years. Beyond that, the specifics of the Paleo-Indian migration to and throughout the Americas, including
1440-407: A few prominent industrialists , largely by their formation of trusts and monopolies to prevent competition. Tycoons led the nation's expansion in the railroad , petroleum , and steel industries. The United States emerged as a pioneer of the automotive industry . These changes were accompanied by significant increases in economic inequality , slum conditions , and social unrest , creating
1600-638: A founding member of the World Bank , Organization of American States , NATO , and the United Nations , as well as a permanent member of the UN Security Council . The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan , a Continental Army aide to General George Washington , wrote to Joseph Reed , Washington's aide-de-camp , seeking to go "with full and ample powers from
1760-591: A note about Columbus's discovery of the land. Following Waldseemüller, the Swiss scholar Heinrich Glarean included the name America in a 1528 work of geography published in Basel . There, four years later, the German scholar Simon Grinaeus published a map, which Hans Holbein and Sebastian Münster (who had made sketches of Waldseemüller's 1507 map) contributed to; this labelled the continent America Terra Nova (America,
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#17327648792411920-598: A period of heightened, overt racism following Reconstruction, a time often called the nadir of American race relations . A series of Supreme Court decisions, including Plessy v. Ferguson , emptied the Fourteenth and Fifteenth Amendments of their force, allowing Jim Crow laws in the South to remain unchecked, sundown towns in the Midwest, and segregation in communities across the country , which would be reinforced by
2080-488: A prominent leader in the early 1960s. The Great Society plan of President Lyndon Johnson 's administration resulted in groundbreaking and broad-reaching laws, policies and a constitutional amendment to counteract some of the worst effects of lingering institutional racism . The counterculture movement in the U.S. brought significant social changes, including the liberalization of attitudes toward recreational drug use and sexuality . It also encouraged open defiance of
2240-520: A quote from a late 15th-century manuscript (a calendar of Bristol events), the original of which had been lost in an 1860 Bristol fire, that indicated the name America was already known in Bristol in 1497. This year (1497), on St. John the Baptist's day (June 24th), the land of America was found by the merchants of Bristow, in a ship of Bristowe called the 'Mathew,' the which said ship departed from
2400-691: A recent tradition that names Amerike as principal owner and main funder of the Matthew , Cabot's ship of 1497, academic enquiry does not connect Amerike with the ship. Her ownership at that date remains uncertain. Macdonald asserts that the caravel was specifically built for the Atlantic crossing. Hudd proposed his theory in a paper which was read at the 21 May 1908 meeting of the Clifton Antiquarian Club, and which appeared in Volume 7 of
2560-526: A sense of manifest destiny . The Missouri Compromise attempted to balance the desire of northern states to prevent the expansion of slavery into new territories with that of southern states to extend it, admitting Missouri as a slave state and Maine as a free state. It further prohibited slavery in all other lands of the Louisiana Purchase north of the 36°30′ parallel . As Americans expanded further into land inhabited by Native Americans,
2720-614: A sense of American identity as well. Men who otherwise never left their own colony now traveled across the continent to fight alongside men from decidedly different backgrounds but who were no less "American". British officers trained American officers for battle, most notably George Washington ; these officers would lend their skills and expertise to the colonists' cause during the American Revolutionary War to come. In addition, colonial legislatures and officials found it necessary to cooperate intensively in pursuit of
2880-427: A single continent in a book published in the United States in 1937, such a notion remained fairly common until World War II. It cannot be coincidental that this idea served American geopolitical designs at the time, which sought both Western Hemispheric domination and disengagement from the "Old World" continents of Europe, Asia, and Africa. By the 1950s, however, virtually all American geographers had come to insist that
3040-632: A status solidified after its involvement in World War I . After Japan 's attack on Pearl Harbor in December 1941, the U.S. entered World War II . Its aftermath left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War , during which both countries struggled for ideological dominance and international influence . Following the Soviet Union's collapse and
3200-401: A year). Juvenile correctional facilities are operated by local or state governments and serve as longer-term placements for any minor adjudicated as delinquent and ordered by a judge to be confined. As of January 2023, the United States has the sixth-highest per capita incarceration rate in the world—531 people per 100,000 inhabitants—and the largest prison and jail population in
3360-591: Is believed to be the first widespread culture in the Americas. Over time, indigenous North American cultures grew increasingly sophisticated, and some, such as the Mississippian culture , developed agriculture , architecture , and complex societies . In the post-archaic period , the Mississippian cultures were located in the midwestern , eastern , and southern regions, and the Algonquian in
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#17327648792413520-740: Is dominant in the nation of Haiti , where French is also spoken. Native languages are more prominent in Latin America than in Anglo-America , with Nahuatl , Quechua , Aymara , and Guaraní as the most common. Various other native languages are spoken with less frequency across both Anglo-America and Latin America. Creole languages other than Haitian Creole are also spoken in parts of Latin America. India Nova In contemporary English, North and South America are generally considered separate continents, and taken together are called
3680-486: Is freed from the charge of violating the long-established and virtually inviolable ancient European tradition of using only the first name of royal individuals as opposed to the last name of commoners (such as Vespucci) in bestowing names to lands. Bristol antiquarian Alfred Hudd suggested in 1908 that the name was derived from the surname "Amerike" or "ap Meryk" and was used on early British maps that have since been lost. Richard ap Meryk, anglicised to Richard Amerike
3840-498: Is known as the presidential system , in contrast to the parliamentary system , where the executive is part of the legislative body. Many countries around the world imitated this aspect of the 1789 Constitution of the United States , especially in the Americas. The Constitution is silent on political parties. However, they developed independently in the 18th century with the Federalist and Anti-Federalist parties. Since then,
4000-586: Is no strong evidence to substantiate his theory that Cabot named America after Richard Ameryk. Moreover, because Amerike's coat of arms was similar to the flag later adopted by the independent United States, a legend grew that the North American continent had been named for him rather than for Amerigo Vespucci. It is not widely accepted - the origin is usually attributed to the flag of the British East India Company . In 1977,
4160-438: Is now the United States experienced conflicts with Native Americans, they also engaged in trade, exchanging European tools for food and animal pelts. Relations ranged from close cooperation to warfare and massacres. The colonial authorities often pursued policies that forced Native Americans to adopt European lifestyles, including conversion to Christianity. Along the eastern seaboard, settlers trafficked African slaves through
4320-594: Is that of the Amazon , which has the highest volume flow of any river on Earth. The second largest watershed of South America is that of the Paraná River , which covers about 2.5 million km. North America and South America began to develop a shared population of flora and fauna around 2.5 million years ago, when continental drift brought the two continents into contact via the Isthmus of Panama . Initially,
4480-552: Is the federal agency charged with addressing most environmental-related issues . The idea of wilderness has shaped the management of public lands since 1964, with the Wilderness Act . The Endangered Species Act of 1973 provides a way to protect threatened and endangered species and their habitats. The United States Fish and Wildlife Service implements and enforces the Act. In 2024, the U.S. ranked 34th among 180 countries in
4640-701: Is the most easterly point of the continental shelf. South America broke off from the west of the supercontinent Gondwana around 135 million years ago, forming its own continent. Around 15 million years ago, the collision of the Caribbean Plate and the Pacific Plate resulted in the emergence of a series of volcanoes along the border that created a number of islands. The gaps in the archipelago of Central America filled in with material eroded off North America and South America, plus new land created by continued volcanism. By three million years ago,
4800-603: The Allies of World War I , helping to turn the tide against the Central Powers . In 1920, a constitutional amendment granted nationwide women's suffrage . During the 1920s and '30s, radio for mass communication and the invention of early television transformed communications nationwide. The Wall Street Crash of 1929 triggered the Great Depression , which President Franklin D. Roosevelt responded to with
4960-773: The Amerrisque Mountains in present-day Nicaragua . The next year, Jules Marcou suggested a derivation of the continent's name from this mountain range. Marcou corresponded with Augustus Le Plongeon , who wrote: "The name AMERICA or AMERRIQUE in the Mayan language means, a country of perpetually strong wind, or the Land of the Wind, and ... the [suffixes] can mean ... a spirit that breathes, life itself." In this view, native speakers shared this indigenous word with Columbus and members of his crew, and Columbus made landfall in
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5120-749: The Andes and Rocky Mountains . The Sierra Nevada and the Cascade Range reach similar altitudes as the Rocky Mountains , but are significantly smaller. In North America, the greatest number of fourteeners are in the United States, and more specifically in the US state of Colorado . The highest peaks of the Americas are located in the Andes , with Aconcagua of Argentina being the highest; in North America Denali (Mount McKinley) in
5280-571: The Andes running along the west coast of South America and the Rocky Mountains and other North American Cordillera ranges running along the western side of North America. The 2,300-kilometer-long (1,400 mi) Appalachian Mountains run along the east coast of North America from Alabama to Newfoundland . North of the Appalachians, the Arctic Cordillera runs along the eastern coast of Canada. The largest mountain ranges are
5440-553: The Atlantic slave trade . The original Thirteen Colonies that would later found the United States were administered as possessions of Great Britain , and had local governments with elections open to most white male property owners . The colonial population grew rapidly, eclipsing Native American populations; by the 1770s, the natural increase of the population was such that only a small minority of Americans had been born overseas. The colonies' distance from Britain allowed for
5600-818: The Boothia Peninsula in northern Canada and Cape Froward in Chilean Patagonia , is roughly 14,000 km (8,700 mi). The mainland's most westerly point is the end of the Seward Peninsula in Alaska; Attu Island , further off the Alaskan coast to the west, is considered the westernmost point of the Americas. Ponta do Seixas in northeastern Brazil forms the easternmost extremity of the mainland, while Nordostrundingen , in Greenland,
5760-644: The Columbian exchange and inaugurated a period of exploration , conquest, and colonization whose effects and consequences persist to the present. The Spanish presence involved the enslavement of large numbers of the indigenous population of America. Diseases introduced from Europe and West Africa devastated the indigenous peoples , and the European powers colonized the Americas . Mass emigration from Europe , including large numbers of indentured servants , and importation of African slaves largely replaced
5920-603: The Cosmographiae Introductio has commonly been read as argument, in which the author said that he was naming the newly discovered continent in honor of Vespucci and saw no reason for objections. But, as etymologist Joy Rea has suggested, it could also be read as an explanation, in which he indicates that he has heard the New World was called America, and the only explanation lay in Vespucci's name. Among
6080-686: The Dorset culture was displaced by the final migrants from the Bering sea coast line, the Thule people (the ancestors of modern Inuit ), by 1000 CE . Around the same time as the Inuit migrated into Greenland, Viking settlers began arriving in Greenland in 982 and Vinland shortly thereafter, establishing a settlement at L'Anse aux Meadows , near the northernmost tip of Newfoundland . Contact between
6240-549: The Environmental Performance Index . The country joined the Paris Agreement on climate change in 2016 and has many other environmental commitments. The United States is a federal republic of 50 states and a separate federal capital district, Washington, D.C. It also asserts sovereignty over five unincorporated territories and several uninhabited island possessions . The U.S. is
6400-500: The Federal Bureau of Investigation (FBI) and the U.S. Marshals Service have national jurisdiction and specialized duties, such as protecting civil rights , national security and enforcing U.S. federal courts ' rulings and federal laws. State courts conduct most civil and criminal trials, and federal courts handle designated crimes and appeals of state court decisions . There is no unified "criminal justice system" in
6560-705: The Grand Canyon and created phenomena such as the Salton Sea . The Columbia is a large river, 1,243 miles (2,000 km) long, in central western North America and is the most powerful river on the West Coast of the Americas. In the far northwest of North America, the Yukon drains much of the Alaskan peninsula and flows 1,980 miles (3,190 km) from parts of Yukon and the Northwest Territory to
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6720-720: The Great Lakes , Mississippi River and Gulf of Mexico . British colonization of the East Coast began with the Virginia Colony (1607) and Plymouth Colony (1620). The Mayflower Compact and the Fundamental Orders of Connecticut established precedents for representative self-governance and constitutionalism that would develop throughout the American colonies. While European settlers in what
6880-719: The Great Lakes region and along the Eastern Seaboard , while the Hohokam culture and Ancestral Puebloans inhabited the southwest . Native population estimates of what is now the United States before the arrival of European immigrants range from around 500,000 to nearly 10 million. Christopher Columbus began exploring the Caribbean for Spain in 1492, leading to Spanish-speaking settlements and missions from Puerto Rico and Florida to New Mexico and California . France established its own settlements along
7040-513: The Great Plains , and large areas between the Rocky and Appalachian mountains. This river is the fourth longest in the world and tenth most powerful in the world . In North America, to the east of the Appalachian Mountains , there are no major rivers but rather a series of rivers and streams that flow east with their terminus in the Atlantic Ocean, such as the Hudson River , Saint John River , and Savannah River . A similar instance arises with central Canadian rivers that drain into Hudson Bay ;
7200-508: The Inuit into the neoarctic c. 3500 BCE completed what is generally regarded as the settlement by the Indigenous peoples of the Americas . The first known European settlement in the Americas was by the Norse explorer Leif Erikson . However, the colonization never became permanent and was later abandoned. The Spanish voyages of Christopher Columbus from 1492 to 1504 resulted in permanent contact with European (and subsequently, other Old World ) powers, which eventually led to
7360-442: The Latin version of Italian explorer Amerigo Vespucci 's first name. The feminine form America was originally used to refer to the newly discovered continent, which is why it was accorded with the feminine names of the other continents: Asia , Africa , and Europa . Since the 1950s, however, North America and South America have generally been considered by English speakers as separate continents, and taken together are called
7520-426: The Midwest . At the same time, about one million French Canadians migrated from Quebec to New England . During the Great Migration , millions of African Americans left the rural South for urban areas in the North. Alaska was purchased from Russia in 1867. The Compromise of 1877 effectively ended Reconstruction and white supremacists took local control of Southern politics . African Americans endured
7680-553: The National Park Service and other agencies. About 28% of the country's land is publicly owned and federally managed, primarily in the Western States . Most of this land is protected , though some is leased for commercial use, and less than one percent is used for military purposes. Environmental issues in the United States include debates on non-renewable resources and nuclear energy , air and water pollution , biodiversity , logging and deforestation , and climate change . The U.S. Environmental Protection Agency (EPA)
7840-437: The New Deal , a series of sweeping programs and public works projects combined with financial reforms and regulations . All were intended to protect against future economic depressions. Initially neutral during World War II , the U.S. began supplying war materiel to the Allies of World War II in March 1941 and entered the war in December after the Empire of Japan 's attack on Pearl Harbor . The U.S. developed
8000-482: The New World , the continent also bears the inscription: America ab inuentore nuncupata (America, named after its discoverer). Mercator on his map called North America "America or New India" ( America sive India Nova ). Americus Vesputius was the Latinized version of the Italian explorer Amerigo Vespucci 's name, the forename being an old Italianization (compare modern Italian Enrico ) of Medieval Latin Emericus (see Saint Emeric of Hungary ), from
8160-440: The New World . Along with their associated islands , the Americas cover 8% of Earth's total surface area and 28.4% of its land area. The topography is dominated by the American Cordillera , a long chain of mountains that runs the length of the west coast. The flatter eastern side of the Americas is dominated by large river basins, such as the Amazon , St. Lawrence River – Great Lakes , Mississippi , and La Plata basins. Since
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#17327648792418320-508: The Organization of American States and the United States–Mexico–Canada Free Trade Agreement . In South America, Colombia is traditionally considered to be the closest ally of the United States. The U.S. exercises full international defense authority and responsibility for Micronesia , the Marshall Islands , and Palau through the Compact of Free Association . It has increasingly conducted strategic cooperation with India , but its ties with China have steadily deteriorated. Since 2014,
8480-539: The Pentium microprocessor in accordance with Moore's law , rechargeable lithium-ion batteries , the first gene therapy trial, and cloning either emerged in the U.S. or were improved upon there. The Human Genome Project was formally launched in 1990, while Nasdaq became the first stock market in the United States to trade online in 1998. In the Gulf War of 1991, an American-led international coalition of states expelled an Iraqi invasion force that had occupied neighboring Kuwait . The September 11 attacks on
8640-399: The Quaternary glaciation . These people are believed to have followed herds of now-extinct pleistocene megafauna along ice-free corridors that stretched between the Laurentide and Cordilleran ice sheets. Another route proposed is that, either on foot or using primitive boats , they migrated down the Pacific coast to South America. Evidence of the latter would since have been covered by
8800-399: The Spanish–American War . (The Philippines was granted full independence from the U.S. on July 4, 1946, following World War II. Puerto Rico and Guam have remained U.S. territories.) American Samoa was acquired by the United States in 1900 after the Second Samoan Civil War . The U.S. Virgin Islands were purchased from Denmark in 1917. The United States entered World War I alongside
8960-499: The United States ( U.S. ) or America , is a country primarily located in North America . It is a federal union of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the states of Alaska to the northwest and the archipelagic Hawaii in the Pacific Ocean . The United States also asserts sovereignty over five major island territories and various uninhabited islands . The country has
9120-399: The cotton gin made the institution increasingly profitable for Southern elites . This sectional conflict regarding slavery culminated in the American Civil War (1861–1865). Eleven slave states seceded and formed the Confederate States of America , while the other states remained in the Union . War broke out in April 1861 after the Confederates bombarded Fort Sumter . After
9280-416: The end of the Cold War in 1991, the U.S. emerged as the world's sole superpower , wielding significant geopolitical influence globally . The U.S. national government is a presidential constitutional federal republic and liberal democracy with three separate branches : legislative , executive , and judicial . It has a bicameral national legislature composed of the House of Representatives ,
9440-413: The fall of communism and the collapse of the Soviet Union , which marked the end of the Cold War and left the United States as the world's sole superpower . The 1990s saw the longest recorded economic expansion in American history , a dramatic decline in U.S. crime rates , and advances in technology . Throughout this decade, technological innovations such as the World Wide Web , the evolution of
9600-400: The global economy in 2023. It possesses by far the largest amount of wealth of any country and has the highest disposable household income per capita among OECD countries. The U.S. ranks among the world's highest in economic competitiveness , productivity , innovation , human rights , and higher education . Its hard power and cultural influence have a global reach. The U.S. is
9760-406: The 1775 Battles of Lexington and Concord , igniting the American Revolutionary War . At the Second Continental Congress , the colonies appointed George Washington commander-in-chief of the Continental Army , and created a committee that named Thomas Jefferson to draft the Declaration of Independence . Two days after passing the Lee Resolution to create an independent nation the Declaration
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#17327648792419920-466: The 2010s, political polarization in the country increased between liberal and conservative factions. This polarization was capitalized upon in the January 2021 Capitol attack , when a mob of insurrectionists entered the U.S. Capitol and sought to prevent the peaceful transfer of power in an attempted self-coup d'état . The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and
10080-426: The American West have an alpine climate . The climate is arid in the Southwest, Mediterranean in coastal California , and oceanic in coastal Oregon , Washington , and southern Alaska . Most of Alaska is subarctic or polar . Hawaii , the southern tip of Florida and U.S. territories in the Caribbean and Pacific are tropical . States bordering the Gulf of Mexico are prone to hurricanes, and most of
10240-722: The American continents, spanning the time of the original settlement in the Upper Paleolithic to European colonization during the Early Modern period . The term Pre-Columbian is used especially often in the context of the great indigenous civilizations of the Americas , such as those of Mesoamerica ( Olmec , Toltec , Teotihuacano , Zapotec , Mixtec , Aztec , Maya ) and the Andean civilizations ( Inca , Moche , Chavín , Muisca , Cañari ). Many pre-Columbian civilizations established characteristics and hallmarks which included permanent or urban settlements, agriculture, civic and monumental architecture, and complex societal hierarchies . Some of these civilizations had long faded by
10400-553: The Americas in the plural. When conceived as a unitary continent, the form is generally the continent of America in the singular. However, without a clarifying context, singular America in English commonly refers to the United States of America . Historically, in the English-speaking world, the term America could refer to a single continent until the 1950s (as in Van Loon 's Geography of 1937): According to historians Kären Wigen and Martin W. Lewis, While it might seem surprising to find North and South America still joined into
10560-436: The Americas , or more rarely America . When conceived as a unitary continent, the form is generally the continent of America in the singular. However, without a clarifying context, singular America in English commonly refers to the United States of America . The pre-Columbian era incorporates all period subdivisions in the history and prehistory of the Americas before the appearance of significant European influences on
10720-421: The Americas began with the first voyage of Christopher Columbus in 1492. The first Spanish settlement in the Americas was La Isabela in northern Hispaniola . This town was abandoned shortly after in favor of Santo Domingo de Guzmán , founded in 1496, the oldest American city of European foundation. This was the base from which the Spanish monarchy administered its new colonies and their expansion. Santo Domingo
10880-434: The Americas extend 14,000 km (8,700 mi) from north to south, the climate and ecology vary widely, from the arctic tundra of Northern Canada , Greenland , and Alaska , to the tropical rainforests in Central America and South America. Humans first settled the Americas from Asia between 20,000 and 16,000 years ago. A second migration of Na-Dene speakers followed later from Asia. The subsequent migration of
11040-445: The Americas were taken to Brazil alone, to work primarily in sugar cane plantations, mining, and agricultural endeavors. In North America, the British Empire was heavily involved in the transatlantic slave trade, with the establishment of colonies such as Virginia, where enslaved Africans were primarily used as labor in tobacco plantations and later in other agricultural and domestic sectors. This system perpetuated for centuries, shaping
11200-426: The Americas, as well as an autonomous country of Denmark , three overseas departments of France , three overseas collectivities of France, and one uninhabited territory of France, eight overseas territories of the United Kingdom , three constituent countries of the Netherlands , three public bodies of the Netherlands, two unincorporated territories of the United States , and one uninhabited territory of
11360-438: The Americas. Migration continued as people moved to the Americas fleeing religious persecution or seeking economic opportunities. Millions of individuals were forcibly transported to the Americas as slaves , prisoners or indentured servants . Decolonization of the Americas began with the American Revolution and the Haitian Revolution in the late 1700s. This was followed by numerous Latin American wars of independence in
11520-650: The Americas. Some are of European origin, others are spoken by indigenous peoples or are the mixture of various languages like the different creoles. The most widely spoken first language in the Americas is Spanish , followed by English and Portuguese . The dominant language of Latin America is Spanish, though the most populous nation in Latin America, Brazil , speaks Portuguese . Small enclaves of French -, Dutch - and English-speaking regions also exist in Latin America, notably in French Guiana , Suriname , and Belize and Guyana respectively. Haitian Creole
11680-631: The Americas; New York City, anchor to the largest urban area in the Americas; and São Paulo, the largest city proper in the Americas. All three cities maintain Alpha classification and large scale influence. The population of the Americas is made up of the descendants of four large ethnic groups and their combinations. The majority of the population lives in Latin America , named for its predominant cultures, rooted in Latin Europe (including
11840-727: The Caribbean began to achieve peaceful independence well after World War II . Jamaica and Trinidad and Tobago became independent in 1962, and Guyana and Barbados both achieved independence in 1966. In the 1970s, the Bahamas , Grenada , Dominica , St. Lucia , and St. Vincent and the Grenadines all became independent of the United Kingdom, and Suriname became independent of the Netherlands. Belize , Antigua and Barbuda , and Saint Kitts and Nevis achieved independence from
12000-535: The Declaration of Independence on July 4, 1776. The term "United States" and the initialism "U.S.", used as nouns or as adjectives in English, are common short names for the country. The initialism "USA", a noun, is also common. "United States" and "U.S." are the established terms throughout the U.S. federal government , with prescribed rules. In English, the term "America" rarely refers to topics unrelated to
12160-573: The District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The coastal plain of the Atlantic seaboard gives way to inland forests and rolling hills in the Piedmont plateau region. The Appalachian Mountains and the Adirondack massif separate the East Coast from the Great Lakes and the grasslands of the Midwest . The Mississippi River System ,
12320-573: The Elder concluded that major military resources needed to be devoted to North America to win the war against France. For the first time, the continent became one of the main theaters of what could be termed a " world war ". The British colonies' position as an integral part of the British Empire became more apparent during the war, with British military and civilian officials becoming a more significant presence in American life. The war increased
12480-567: The Faroe Islands) , and elsewhere , where America is still considered a continent encompassing the North America and South America subcontinents , as well as Central America . The earliest known use of the name America dates to April 25, 1507, when it was applied to what is now known as South America. It appears on a small globe map with twelve time zones, together with the largest wall map made to date, both created by
12640-588: The German cartographer Martin Waldseemüller in Saint-Dié-des-Vosges in France. These were the first maps to show the Americas as a land mass separate from Asia. An accompanying book, Cosmographiae Introductio , anonymous but apparently written by Waldseemüller's collaborator Matthias Ringmann , states, "I do not see what right any one would have to object to calling this part [that is,
12800-530: The Hudson River Valley, and what later became New Jersey. The spread of new diseases brought by Europeans and African slaves killed many of the inhabitants of North America and South America, with a general population crash of Native Americans occurring in the mid-16th century, often well ahead of European contact. One of the most devastating diseases was smallpox . European immigrants were often part of state-sponsored attempts to found colonies in
12960-735: The January 1863 Emancipation Proclamation , many freed slaves joined the Union army . The war began to turn in the Union's favor following the 1863 Siege of Vicksburg and Battle of Gettysburg , and the Confederacy surrendered in 1865 after the Union's victory in the Battle of Appomattox Court House . The Reconstruction era followed the war. After the assassination of President Abraham Lincoln , Reconstruction Amendments were passed to protect
13120-458: The New Land). In 1534, Joachim von Watt labelled it simply America. Gerardus Mercator applied the names North and South America on his influential 1538 world map; by this point, the naming was irrevocable. Acceptance may have been aided by the "natural poetic counterpart" that the name America made with Asia, Africa, and Europa . In 1874, Thomas Belt published the indigenous name of
13280-601: The Norse colonies and Europe was maintained, as James Watson Curran states: From 985 to 1410, Greenland was in touch with the world. Then silence. In 1492 the Vatican noted that no news of that country "at the end of the world" had been received for 80 years, and the bishopric of the colony was offered to a certain ecclesiastic if he would go and "restore Christianity" there. He didn't go. Although there had been previous trans-oceanic contact , large-scale European colonization of
13440-519: The Old High German name Emmerich , which may have been a merger of several Germanic names – Amalric , Ermanaric and Old High German Haimirich , from Proto-Germanic *amala- ('vigor, bravery'), *ermuna- ('great; whole') or *haima- ('home') + *rīk- ('ruler') (compare *Haimarīks ). Amerigo Vespucci (March 9, 1454 – February 22, 1512) was an Italian explorer, financier, navigator and cartographer who may have been
13600-960: The Pacific. Draining to the Arctic Ocean of Canada, the Mackenzie River drains waters from the Arctic Great Lakes of Arctic Canada, as opposed to the Saint-Lawrence River that drains the Great Lakes of Southern Canada into the Atlantic Ocean. The Mackenzie River is the largest in Canada and drains 1,805,200 square kilometers (697,000 sq mi). The largest river basin in South America
13760-474: The Republic of Haiti, 1804 The most prevalent faiths in the Americas are as follows: Other faiths include Buddhism ; Hinduism ; Sikhism ; Baháʼí Faith ; a wide variety of indigenous religions, many of which can be categorized as animistic ; new age religions and many African and African-derived religions. Syncretic faiths can also be found throughout the Americas. Various languages are spoken in
13920-611: The Rocky Mountains, the Yellowstone Caldera , is the continent's largest volcanic feature. In 2021, the United States had 8% of global permanent meadows and pastures and 10% of cropland. With its large size and geographic variety, the United States includes most climate types. East of the 100th meridian , the climate ranges from humid continental in the north to humid subtropical in the south. The western Great Plains are semi-arid . Many mountainous areas of
14080-548: The South American mainland], after Americus who discovered it and who is a man of intelligence, Amerigen, that is, the Land of Americus, or America: since both Europa and Asia got their names from women". America is also inscribed on the Paris Green Globe (or Globe vert ) which has been attributed to Waldseemüller and dated to 1506–07: as well as the single name inscribed on the northern and southern parts of
14240-647: The U.S. has become a key ally of Ukraine ; it has also provided the country with significant military equipment and other support in response to Russia's 2022 invasion . The president is the commander-in-chief of the United States Armed Forces and appoints its leaders, the secretary of defense and the Joint Chiefs of Staff . The Department of Defense , which is headquartered at the Pentagon near Washington, D.C., administers five of
14400-661: The U.S. territories." Despite disparate systems of confinement, four main institutions dominate: federal prisons , state prisons , local jails, and juvenile correctional facilities . Federal prisons are run by the Federal Bureau of Prisons and hold people who have been convicted of federal crimes, including pretrial detainees. State prisons, run by the official department of correction of each state, hold sentenced people serving prison time (usually longer than one year) for felony offenses. Local jails are county or municipal facilities that incarcerate defendants prior to trial; they also hold those serving short sentences (typically under
14560-399: The US state of Alaska is the tallest. Between its coastal mountain ranges, North America has vast flat areas. The Interior Plains spread over much of the continent, with low relief. The Canadian Shield covers almost 5 million km of North America and is generally quite flat. Similarly, the north-east of South America is covered by the flat Amazon basin . The Brazilian Highlands on
14720-545: The United Kingdom in the 1980s. The Americas make up most of the land in Earth's Western Hemisphere . The northernmost point of the Americas is Kaffeklubben Island , which is the most northerly point of land on Earth. The southernmost point is the islands of Southern Thule , although they are sometimes considered part of Antarctica . The mainland of the Americas is the world's longest north-to-south landmass. The distance between its two polar extremities, Murchison Promontory on
14880-634: The United Kingdom, starting with the Balfour Declaration of 1926 , Statute of Westminster 1931 , and ending with the patriation of the Canadian Constitution in 1982. The Dominion of Newfoundland similarly achieved independence under the Balfour Declaration and Statute of Westminster, but relinquished self-rule in 1934. It was subsequently confederated with Canada in 1949. The remaining European colonies in
15040-464: The United States and the peaceful transfer of power , respectively. The Louisiana Purchase of 1803 from France nearly doubled the territory of the United States. Lingering issues with Britain remained , leading to the War of 1812 , which was fought to a draw. Spain ceded Florida and its Gulf Coast territory in 1819. In the late 18th century, American settlers began to expand westward , many with
15200-831: The United States entered the Cold War, where geopolitical tensions between the U.S. and the Soviet Union led the two countries to dominate world affairs . The U.S. utilized the policy of containment to limit the USSR's sphere of influence, and prevailed in the Space Race , which culminated with the first crewed Moon landing in 1969. Domestically, the U.S. experienced economic growth , urbanization , and population growth following World War II . The civil rights movement emerged, with Martin Luther King Jr. becoming
15360-666: The United States has operated as a de facto two-party system , though the parties in that system have been different at different times. The two main national parties are presently the Democratic and the Republican . The former is perceived as relatively liberal in its political platform while the latter is perceived as relatively conservative . In the American federal system , sovereign powers are shared between two levels of elected government: national and state. People in
15520-593: The United States in 2001 by the pan-Islamist militant organization al-Qaeda led to the war on terror , and subsequent military interventions in Afghanistan and Iraq . The cultural impact of the attacks was profound and long-lasting. The U.S. housing bubble culminated in 2007 with the Great Recession , the largest economic contraction since the Great Depression. Coming to a head in
15680-656: The United States of America to Spain" to seek assistance in the Revolutionary War effort. The first known public usage is an anonymous essay published in the Williamsburg newspaper, The Virginia Gazette , on April 6, 1776. By June 1776, the "United States of America" appeared in the Articles of Confederation and the Declaration of Independence . The Second Continental Congress adopted
15840-593: The United States, despite the usage of "the Americas " as the totality of North and South America. "The States" is an established colloquial shortening of the name, used particularly from abroad; "stateside" is the corresponding adjective or adverb. The first inhabitants of North America migrated from Siberia across the Bering land bridge about 12,000 years ago; the Clovis culture , which appeared around 11,000 BC,
16000-624: The United States, except Iran , North Korea , and Bhutan . Though Taiwan does not have formal diplomatic relations with the U.S., it maintains close unofficial relations. The United States regularly supplies Taiwan with military equipment to deter potential Chinese aggression. Its geopolitical attention also turned to the Indo-Pacific when the United States joined the Quadrilateral Security Dialogue with Australia, India, and Japan. The United States has
16160-410: The United States. In 2021 the total population of the Americas was about 1.03 billion people, divided as follows: There are three urban centers that each hold titles for being the largest population area based on the three main demographic concepts: In accordance with these definitions, the three largest population centers in the Americas are: Mexico City , anchor to the largest metropolitan area in
16320-457: The United States. Both countries are located in North America, with cultures deriving predominantly from British and other Germanic roots. The transatlantic slave trade brought millions of Africans to the territories of the Americas under the colonial rule of European powers. In South America, Portugal played a significant role in the trafficking of enslaved Africans, with estimates suggesting that around 40% of all Africans forcibly brought to
16480-509: The United States. The American prison system is largely heterogenous, with thousands of relatively independent systems operating across federal, state, local, and tribal levels. In 2023, "these systems [held] almost 2 million people in 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails, as well as in military prisons , civil commitment centers, state psychiatric hospitals, and prisons in
16640-472: The World Council of Indigenous Peoples (Consejo Mundial de Pueblos Indígenas) proposed using the term Abya Yala instead of "America" when referring to the continent. There are also names in other indigenous languages such as Ixachitlan and Runa Pacha. Some scholars have adopted the term as an objection to colonialism. United States The United States of America ( USA ), commonly known as
16800-458: The club's Proceedings . In "Richard Ameryk and the name America," Hudd discussed the 1497 discovery of North America by John Cabot , an Italian who had sailed on behalf of England. Upon his return to England after his first (1497) and second (1498–1499) voyages, Cabot received two pension payments from Henry VII . Of the two customs officials at the Port of Bristol who were responsible for delivering
16960-477: The collision of dry, cool air from Canada and wet, warm air from the Atlantic. With coastal mountains and interior plains, the Americas have several large river basins that drain the continents. The largest river basin in North America is that of the Mississippi , covering the second largest watershed on the planet. The Mississippi-Missouri river system drains most of 31 states of the United States, most of
17120-457: The contiguous United States are in the State of California, about 84 miles (135 km) apart. At an elevation of 20,310 feet (6,190.5 m), Alaska's Denali is the highest peak in the country and continent. Active volcanoes are common throughout Alaska's Alexander and Aleutian Islands , and Hawaii consists of volcanic islands. The supervolcano underlying Yellowstone National Park in
17280-473: The continents of North America and South America were linked by the Isthmus of Panama , thereby forming the single landmass of the Americas. The Great American Interchange resulted in many species being spread across the Americas, such as the cougar , porcupine , opossums , armadillos , and hummingbirds . The geography of the western Americas is dominated by the American Cordillera , with
17440-556: The country's GDP. The U.S. has 42% of the world's nuclear weapons —the second-largest share after Russia. The United States has the third-largest combined armed forces in the world, behind the Chinese People's Liberation Army and Indian Armed Forces . The military operates about 800 bases and facilities abroad, and maintains deployments greater than 100 active duty personnel in 25 foreign countries. State defense forces (SDFs) are military units that operate under
17600-469: The country's territory would expand with the admission of new states , rather than the expansion of existing states. The U.S. Constitution was drafted at the 1787 Constitutional Convention to overcome the limitations of the Articles. It went into effect in 1789, creating a federal republic governed by three separate branches that together ensured a system of checks and balances . George Washington
17760-545: The dates and routes traveled, are subject to ongoing research and discussion. Widespread habitation of the Americas occurred after the Late Glacial Maximum , from 16,000 to 13,000 years ago. The traditional theory has been that these early migrants moved into the Beringia land bridge between eastern Siberia and present-day Alaska around 40,000–17,000 years ago, when sea levels were significantly lowered during
17920-713: The development of self-governance, and the First Great Awakening , a series of Christian revivals , fueled colonial interest in religious liberty . For a century, the American colonists had been providing their own troops and materiel in conflicts with indigenous peoples allied with Britain's colonial rivals , especially France, and the Americans had begun to develop a sense of self-defense and self-reliance separate from Britain. The French and Indian War (1754–1763) took on new significance for all North American colonists after Parliament under William Pitt
18080-482: The dispossession of native inhabitants . As more states were admitted , a North–South division over slavery led to the secession of the Confederate States of America , which fought states remaining in the Union in the 1861–1865 American Civil War . With the victory and preservation of the United States, slavery was abolished nationally . By 1900, the country had established itself as a great power ,
18240-685: The early 1800s. Between 1811 and 1825, Paraguay , Argentina , Chile , Gran Colombia , the United Provinces of Central America , Mexico , Brazil , Peru , and Bolivia gained independence from Spain and Portugal in armed revolutions. After the Dominican Republic won independence from Haiti , it was re-annexed by Spain in 1861, but reclaimed its independence in 1865 at the conclusion of the Dominican Restoration War . The last violent episode of decolonization
18400-497: The east coast are fairly smooth but show some variations in landform, while farther south the Gran Chaco and Pampas are broad lowlands . The climate of the Americas varies significantly from region to region. Tropical rainforest climate occurs in the latitudes of the Amazon , American cloud forests , southeastern Florida and Darién Gap . In the Rocky Mountains and Andes , dry and continental climates are observed. Often
18560-580: The environment for labor unions to begin to flourish . This period eventually ended with the advent of the Progressive Era , which was characterized by significant reforms. Pro-American elements in Hawaii overthrew the Hawaiian monarchy ; the islands were annexed in 1898. That same year, Puerto Rico , the Philippines , and Guam were ceded to the U.S. by Spain after the latter's defeat in
18720-567: The exchange of biota was roughly equal, with North American genera migrating into South America in about the same proportions as South American genera migrated into North America. This exchange is known as the Great American Interchange . The exchange became lopsided after roughly a million years, with the total spread of South American genera into North America far more limited in scope than the spread of North American genera into South America. There are 35 sovereign states in
18880-541: The federal government often applied policies of Indian removal or assimilation . The Trail of Tears (1830–1850) was a U.S. government policy that forcibly removed and displaced most Native Americans living east of the Mississippi River to lands far to the west. These and earlier organized displacements prompted a long series of American Indian Wars west of the Mississippi. The Republic of Texas
19040-642: The first half of the 16th century, Spanish colonists conducted raids throughout the Caribbean Basin , bringing captives from Central America, northern South America, and Florida back to Hispaniola and other Spanish settlements. France, led by Jacques Cartier and Giovanni da Verrazzano , focused primarily on North America. English explorations of the Americas were led by Giovanni Caboto and Sir Walter Raleigh . The Dutch in New Netherland confined their operations to Manhattan Island, Long Island,
19200-606: The first nuclear weapons and used them against the Japanese cities of Hiroshima and Nagasaki in August 1945, ending the war. The United States was one of the " Four Policemen " who met to plan the post-war world , alongside the United Kingdom , Soviet Union , and China . The U.S. emerged relatively unscathed from the war, with even greater economic power and international political influence . After World War II,
19360-745: The first settlement of the Thirteen Colonies in Virginia in 1607. Clashes with the British Crown over taxation and political representation sparked the American Revolution , with the Second Continental Congress formally declaring independence on July 4, 1776. Following its victory in the 1775–1783 Revolutionary War , the country continued to expand westward across North America , resulting in
19520-478: The first to assert that the West Indies and corresponding mainland were not part of Asia's eastern outskirts as initially conjectured from Columbus's voyages , but instead constituted an entirely separate landmass hitherto unknown to the Europeans. Vespucci was apparently unaware of the use of his name to refer to the new landmass, as Waldseemüller's maps did not reach Spain until a few years after his death. Ringmann may have been misled into crediting Vespucci by
19680-453: The higher altitudes of these mountains are snow-capped. Southeastern North America is well known for its occurrence of tornadoes and hurricanes , of which the vast majority of tornadoes occur in the United States' Tornado Alley , as well as in the southerly Dixie Alley in the North American late-winter and early spring seasons. Often parts of the Caribbean are exposed to the violent effects of hurricanes. These weather systems are formed by
19840-447: The indigenous peoples in much of the Americas. Decolonization of the Americas began with the American Revolution in the 1770s and largely ended with the Spanish–American War in the late 1890s. Currently, almost all of the population of the Americas resides in independent countries; however, the legacy of the colonization and settlement by Europeans is that the Americas share many common cultural traits, most notably Christianity and
20000-431: The initial peopling of the Americas; Na Dene speakers found predominantly in North American groups at varying genetic rates with the highest frequency found among the Athabaskans at 42% derive from this second wave. Linguists and biologists have reached a similar conclusion based on analysis of Amerindian language groups and ABO blood group system distributions. Then the people of the Arctic small tool tradition ,
20160-463: The integration of Army National Guard units and personnel into the U.S. Army and (since 1947) the U.S. Air Force. There are about 18,000 U.S. police agencies from local to national level in the United States. Law in the United States is mainly enforced by local police departments and sheriff departments in their municipal or county jurisdictions. The state police departments have authority in their respective state , and federal agencies such as
20320-451: The largest being the Churchill River . On the west coast of North America, the main rivers are the Colorado River , Columbia River , Yukon River , Fraser River , and Sacramento River . The Colorado River drains much of the Southern Rockies and parts of the Basin and Range Province . The river flows approximately 1,450 miles (2,330 km) into the Gulf of California , during which over time it has carved out natural phenomena such as
20480-427: The military draft (leading to the end of conscription in 1973) and wide opposition to U.S. intervention in Vietnam (with the U.S. totally withdrawing in 1975). A societal shift in the roles of women was significantly responsible for the large increase in female paid labor participation during the 1970s, and by 1985 the majority of American women aged 16 and older were employed. The late 1980s and early 1990s saw
20640-521: The money to Cabot, the more senior was Richard Ameryk ( High Sheriff of Bristol in 1503). Hudd postulated that Cabot named the land that he had discovered after Ameryk, from whom he received the pension conferred by the king. He stated that Cabot had a reputation for being free with gifts to his friends, such that his expression of gratitude to the official would not be unexpected. Hudd also thought it unlikely that America would have been named after Vespucci's given name rather than his family name. Hudd used
20800-612: The most attractive to the population are the most vulnerable. The U.S. is one of 17 megadiverse countries containing large numbers of endemic species : about 17,000 species of vascular plants occur in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found in Hawaii, few of which occur on the mainland. The United States is home to 428 mammal species, 784 birds, 311 reptiles, 295 amphibians , and around 91,000 insect species. There are 63 national parks , and hundreds of other federally managed parks, forests, and wilderness areas , managed by
20960-478: The most violent, the California genocide of thousands of Native inhabitants, lasted into the early 1870s, just as additional western territories and states were created. During the colonial period, slavery had been legal in the American colonies , though the practice began to be significantly questioned during the American Revolution. States in the North enacted abolition laws , though support for slavery strengthened in Southern states , as inventions such as
21120-408: The policy of redlining later adopted by the federal Home Owners' Loan Corporation . An explosion of technological advancement accompanied by the exploitation of cheap immigrant labor led to rapid economic expansion during the late 19th and early 20th centuries , allowing the United States to outpace the economies of England, France, and Germany combined. This fostered the amassing of power by
21280-443: The port of Bristowe the 2nd of May and came home again the 6th August following. Hudd reasoned that the scholars of the 1507 Cosmographiae Introductio , unfamiliar with Richard Ameryk, assumed that the name America, which he claimed had been in use for ten years, was based on Amerigo Vespucci and, therefore, mistakenly transferred the honour from Ameryk to Vespucci. While Hudd's speculation has found support from some authors, there
21440-420: The primary colonial grievances was a denial of their rights as Englishmen , particularly the right to representation in the British government that taxed them . To demonstrate their dissatisfaction and resolve, the First Continental Congress met in 1774 and passed the Continental Association , a colonial boycott of British goods that proved effective. The British attempt to then disarm the colonists resulted in
21600-436: The reasons which proponents give in adopting this theory include the recognition of, in Cohen's words, "the simple fact that place names usually originate informally in the spoken word and first circulate that way, not in the printed word". In addition, Waldseemüller not only is exonerated from the charge of having arrogated to himself the privilege of naming lands, which privilege was reserved to monarchs and explorers, but also
21760-515: The rights of African Americans . National infrastructure, including transcontinental telegraph and railroads , spurred growth in the American frontier . From 1865 through 1917 an unprecedented stream of immigrants arrived in the United States, including 24.4 million from Europe. Most came through the port of New York City , and New York City and other large cities on the East Coast became home to large Jewish , Irish , and Italian populations, while many Germans and Central Europeans moved to
21920-437: The rocky Great Basin and Chihuahua , Sonoran , and Mojave deserts. In the northwest corner of Arizona , carved by the Colorado River over millions of years, is the Grand Canyon , a steep-sided canyon and popular tourist destination known for its overwhelming visual size and intricate, colorful landscape. The Sierra Nevada and Cascade mountain ranges run close to the Pacific coast . The lowest and highest points in
22080-464: The six service branches, which are made up of the U.S. Army , Marine Corps , Navy , Air Force , and Space Force . The Coast Guard is administered by the Department of Homeland Security in peacetime and can be transferred to the Department of the Navy in wartime. The United States spent $ 916 billion on its military in 2023, which is by far the largest amount of any country , making up 37% of global military spending and accounting for 3.4% of
22240-441: The socio-economic landscape of all nations of the hemisphere. After the Haitian Revolution led by Jean-Jacques Dessalines , which started in 1791 and was the only successful slave revolt in history, the world's first black republic was established. It started with the massacre of the white population, between 3,000 and 5,000 white men and women of all ages were killed. Dessalines declared: — Dessalines, first president of
22400-407: The sole authority of a state government. SDFs are authorized by state and federal law but are under the command of the state's governor . They are distinct from the state's National Guard units in that they cannot become federalized entities. A state's National Guard personnel, however, may be federalized under the National Defense Act Amendments of 1933 , which created the Guard and provides for
22560-543: The states are also represented by local elected governments , which are administrative divisions of the states. States are subdivided into counties or county equivalents , and further divided into municipalities . The District of Columbia is a federal district containing the U.S. capital, Washington, D.C. . The federal district is an administrative division of the federal government. Federally recognized tribes govern 326 Indian reservations . The United States has an established structure of foreign relations, and it has
22720-451: The structure and responsibilities of the national federal government and its relationship with the individual states. The U.S. Constitution is the world's oldest national constitution still in effect (from March 4, 1789). Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances . The three-branch system
22880-425: The time of the first permanent European arrivals ( c. late 15th –early 16th centuries), and are known only through archeological investigations. Others were contemporary with this period, and are also known from historical accounts of the time. A few, such as the Maya, had their own written records. However, most Europeans of the time viewed such texts as pagan, and much was destroyed in Christian pyres. Only
23040-451: The two dominant languages, Spanish and Portuguese , both Romance languages ), more specifically in the Iberian nations of Portugal and Spain (hence the use of the term Ibero-America as a synonym). Latin America is typically contrasted with Anglo-America , where English, a Germanic language , is prevalent, and which comprises Canada (with the exception of Francophone Canada rooted in Latin Europe [France]—see Quebec and Acadia ) and
23200-662: The use of West European languages: primarily Spanish , English , Portuguese , French , and, to a lesser extent, Dutch . The Americas are home to more than a billion inhabitants, two-thirds of whom reside in the United States , Brazil , and Mexico . It is home to eight megacities ( metropolitan areas with 10 million inhabitants or more): Greater Mexico City (21.2 million), São Paulo (21.2 million), New York City (19.7 million), Los Angeles (18.8 million), Buenos Aires (15.6 million), Rio de Janeiro (13.0 million), Bogotá (10.4 million), and Lima (10.1 million). The name "America"
23360-409: The vicinity of these mountains on his fourth voyage. The name America then spread via oral means throughout Europe relatively quickly even reaching Waldseemüller, who was preparing a map of newly reported lands for publication in 1507. Waldseemüller's work in the area of denomination takes on a different aspect in this view. Jonathan Cohen of Stony Brook University writes: The baptismal passage in
23520-521: The visually distinct landmasses of North and South America deserved separate designations. This shift did not seem to happen in most other cultural hemispheres on Earth, such as Romance-speaking (including France, Belgium, Luxembourg, Italy, Portugal, Spain, Romania, Switzerland, Latin America , and the postcolonial Romance-speaking countries of Africa), Germanic (but excluding English) speaking (including Germany, Austria, Switzerland, Belgium, The Netherlands, Luxembourg, Denmark, Norway, Sweden, Iceland, and
23680-514: The widely published Soderini Letter, a sensationalized version of one of Vespucci's actual letters reporting on the mapping of the South American coast, which glamorized his discoveries and implied that he had recognized that South America was a continent separate from Asia. Spain officially refused to accept the name America for two centuries, saying that Columbus should get credit, and Waldseemüller's later maps, after Ringmann's death, did not include it; in 1513 he labelled it " Terra Incognita " with
23840-406: The world's fourth-longest river system , runs predominantly north–south through the heart of the country. The flat and fertile prairie of the Great Plains stretches to the west, interrupted by a highland region in the southeast. The Rocky Mountains , west of the Great Plains, extend north to south across the country, peaking at over 14,000 feet (4,300 m) in Colorado . Farther west are
24000-449: The world's second-largest diplomatic corps as of 2024 . It is a permanent member of the United Nations Security Council , and home to the United Nations headquarters . The United States is a member of the G7 , G20 , and OECD intergovernmental organizations. Almost all countries have embassies and many have consulates (official representatives) in the country. Likewise, nearly all countries host formal diplomatic missions with
24160-461: The world's third-largest land area , largest exclusive economic zone , and third-largest population , exceeding 334 million. Its three largest metropolitan areas are New York , Los Angeles , and Chicago , and its three most populous states are California , Texas , and Florida . Paleo-Indians migrated across the Bering land bridge more than 12,000 years ago, and formed various civilizations and societies . British colonization led to
24320-444: The world's oldest surviving federation, and its presidential system of national government has been adopted, in whole or in part, by many newly independent states worldwide following their decolonization . It is a liberal representative democracy "in which majority rule is tempered by minority rights protected by law ". The Constitution of the United States serves as the country's supreme legal document , also establishing
24480-423: The world's tornadoes occur in the country , mainly in Tornado Alley . Overall, the United States receives more high-impact extreme weather incidents than any other country. Extreme weather became more frequent in the U.S. in the 21st century, with three times the number of reported heat waves as in the 1960s. In the American Southwest , droughts became more persistent and more severe. The regions considered as
24640-458: Was annexed in 1845, and the 1846 Oregon Treaty led to U.S. control of the present-day American Northwest . Victory in the Mexican–American War resulted in the 1848 Mexican Cession of California, Nevada, Utah, and much of present-day Colorado and the American Southwest . The California gold rush of 1848–1849 spurred a huge migration of white settlers to the Pacific coast, leading to even more confrontations with Native populations. One of
24800-433: Was a wealthy Anglo-Welsh merchant, royal customs officer and sheriff of Bristol. According to some writers, he was the principal owner of the Matthew , the ship sailed by John Cabot during his voyage of exploration to North America in 1497. The idea that Richard Amerike was a 'principal supporter' of Cabot has gained popular currency in the 21st century. There is no evidence to support this. Similarly, and contrary to
24960-703: Was adopted on July 4, 1776. The political values of the American Revolution included liberty , inalienable individual rights ; and the sovereignty of the people ; supporting republicanism and rejecting monarchy , aristocracy , and all hereditary political power; civic virtue ; and vilification of political corruption . The Founding Fathers of the United States , who included Washington, Jefferson, John Adams , Benjamin Franklin , Alexander Hamilton , John Jay , James Madison , Thomas Paine , and many others, were inspired by Greco-Roman , Renaissance , and Enlightenment philosophies and ideas. The Articles of Confederation were ratified in 1781 and established
25120-404: Was elected the country's first president under the Constitution, and the Bill of Rights was adopted in 1791 to allay skeptics' concerns about the power of the more centralized government. His resignation as commander-in-chief after the Revolutionary War and his later refusal to run for a third term as the country's first president established a precedent for the supremacy of civil authority in
25280-424: Was first recorded in 1507. A two-dimensional globe created by Martin Waldseemüller was the earliest recorded use of the term. The name was also used (together with the related term Amerigen ) in the Cosmographiae Introductio , apparently written by Matthias Ringmann , in reference to South America. It was applied to both North and South America by Gerardus Mercator in 1538. "America" derives from Americus ,
25440-444: Was subject to frequent raids by English and French pirates . On the continent, Panama City on the Pacific coast of Central America, founded on August 15, 1519, played an important role, being the base for the Spanish conquest of South America. Conquistador Lucas Vázquez de Ayllón established San Miguel de Guadalupe , the first European settlement in what is now the United States , on the Pee Dee River in South Carolina . During
25600-461: Was the Cuban War of Independence which became the Spanish–American War , which resulted in the independence of Cuba in 1898, and the transfer of sovereignty over Puerto Rico from Spain to the United States. Peaceful decolonization began with the United States's purchase of Louisiana from France in 1803, Florida from Spain in 1819, of Alaska from Russia in 1867, and the Danish West Indies from Denmark in 1916. Canada became independent of
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