United States

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United States of America
Flag Coat of arms
Motto: "In God We Trust"

Independence from Great Britain
Other traditional mottos:
Anthem: "The Star-Spangled Banner" March: "The Stars and Stripes Forever"
Great Seal:
Show globe (states and D.C. only)Show the U.S. and its territoriesShow all
Capital	Washington, D.C. 38°53′N 77°01′W
Largest city	New York City 40°43′N 74°00′W
Official languages	None at the federal level
National language	English

Demonym(s)	American
Government	Federal presidential constitutional republic

• President	Joe Biden
• Vice President	Kamala Harris
• House Speaker	Nancy Pelosi
• Chief Justice	John Roberts
Legislature	Congress
• Upper house	Senate
• Lower house	House of Representatives

• Declaration	July 4, 1776
• Confederation	March 1, 1781
• Treaty of Paris	September 3, 1783
• Constitution	June 21, 1788
• Bill of Rights	September 25, 1789
• Last state admitted	August 21, 1959
• Last amendment	May 5, 1992
Area
• Total area	3,796,742 sq mi (9,833,520 km²) (3rd/4th)
• Water (%)	4.66 (as of 2015)
• Total land area	3,531,905 sq mi (9,147,590 km²)
Population
• 2020 census	331,449,281 (3rd)
• Density	87/sq mi (33.6/km²) (146th)
GDP (PPP)	2021 estimate
• Total	$22.675 trillion (2nd)
• Per capita	$68,309 (7th)
GDP (nominal)	2021 estimate
• Total	$22.675 trillion (1st)
• Per capita	$68,309 (5th)
Gini (2020)	48.5^[15] high
HDI (2019)	0.926 very high · 17th
Currency	United States dollar ($) (USD)
Time zone	UTC−4 to −12, +10, +11
• Summer (DST)	UTC−4 to −10
Date format	mm/dd/yyyy yyyy-mm-dd

The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, 326 Indian reservations, and some minor possessions. At 3.8 million square miles (9.8 million square kilometers), it is the world's third- or fourth-largest country by total area.The United States shares significant land borders with Canada to the north and Mexico to the south, as well as limited maritime borders with Cuba, Russia, and the Bahamas. With a population of more than 331 million people, it is the third most populous country in the world. The national capital is Washington, D.C., and the most populous city is New York City.

Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago, and European colonization began in the 16th century. The United States emerged from the thirteen British colonies established along the East Coast. Disputes over taxation and political representation with Great Britain led to the American Revolutionary War (1775–1783), which established independence. In the late 18th century, the U.S. began expanding across North America, gradually obtaining new territories, sometimes through war, frequently displacing Native Americans, and admitting new states; by 1848, the United States spanned the continent. Slavery was legal in the southern United States until the second half of the 19th century when the American Civil War led to its abolition. The Spanish–American War and World War I established the U.S. as a world power, a status confirmed by the outcome of World War II.

During the Cold War, the United States fought the Korean War and the Vietnam War but avoided direct military conflict with the Soviet Union. The two superpowers competed in the Space Race, culminating in the 1969 spaceflight that first landed humans on the Moon. The Soviet Union's dissolution in 1991 ended the Cold War, leaving the United States as the world's sole superpower.

The United States is a federal republic and a representative democracy with three separate branches of government, including a bicameral legislature. It is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, NATO, and other international organizations. It is a permanent member of the United Nations Security Council. Considered a melting pot of cultures and ethnicities, its population has been profoundly shaped by centuries of immigration. The U.S. ranks high in international measures of economic freedom, quality of life, education, and human rights, and has low levels of perceived corruption. However, the country has received criticism concerning inequality related to race, wealth and income, the use of capital punishment, high incarceration rates, and lack of universal health care.

The United States is a highly developed country, accounts for approximately a quarter of global GDP, and is the world's largest economy by GDP at market exchange rates. By value, the United States is the world's largest importer and the second-largest exporter of goods. Although its population is only 4.2% of the world's total, it holds 29.4% of the total wealth in the world, the largest share held by any country. Making up more than a third of global military spending, it is the foremost military power in the world; and it is a leading political, cultural, and scientific force internationally.

USA a safe country?

America is no stranger to crime. A lot of the safety concerns that visitors have will almost certainly be related to crime – and the potential threat of being a victim of crime. Unfortunately, it is true that – statistically, at least – the USA is far from the safest country in the world

Why USA is famous?

The US Is Called Many Names

The United States is by far the most famous country in the world. It's famous for its attractions, such as the Grand Canyon, tech innovation, sports, and it has a large imprint on the global culture thanks to famous movies, television shows, and music.

Why USA is called America?

America is named after Amerigo Vespucci, the Italian explorer who set forth the then revolutionary concept that the lands that Christopher Columbus sailed to in 1492 were part of a separate continent. ... He included on the map data gathered by Vespucci during his voyages of 1501-1502 to the New World.

Who is the most famous person in America?

fame is defined by the % of people who have heard of a person. Find out more

1 Johnny Depp99%
2 Oprah Winfrey98%
3 Tom Cruise98%
4 Morgan Freeman98%
5 Kim Kardashian98%
6 Will Smith98%
7 Michelle Obama98%
8 Jim Carrey98%

History

Indigenous peoples and pre-Columbian history

The Cliff Palace, built by the Native American Puebloans between AD 1190 and 1260

It has been generally accepted that the first inhabitants of North America migrated from Siberia by way of the Bering land bridge and arrived at least 12,000 years ago; however, some evidence suggests an even earlier date of arrival.The Clovis culture, which appeared around 11,000 BC, is believed to represent the first wave of human settlement of the Americas. This was likely the first of three major waves of migration into North America; later waves brought the ancestors of present-day Athabaskans, Aleuts, and Eskimos.

Over time, indigenous cultures in North America grew increasingly complex, and some, such as the pre-Columbian Mississippian culture in the southeast, developed advanced agriculture, architecture, and complex societies. The city-state of Cahokia is the largest, most complex pre-Columbian archaeological site in the modern-day United States. In the Four Corners region, Ancestral Puebloan culture developed from centuries of agricultural experimentation. The Haudenosaunee, located in the southern Great Lakes region, was established at some point between the twelfth and fifteenth centuries. Most prominent along the Atlantic coast were the Algonquian tribes, who practiced hunting and trapping, along with limited cultivation.

Estimating the native population of North America at the time of European contact is difficult.Douglas H. Ubelaker of the Smithsonian Institution estimated that there was a population of 92,916 in the south Atlantic states and a population of 473,616 in the Gulf states, but most academics regard this figure as too low. Anthropologist Henry F. Dobyns believed the populations were much higher, suggesting around 1.1 million along the shores of the Gulf of Mexico, 2.2 million people living between Florida and Massachusetts, 5.2 million in the Mississippi Valley and tributaries, and around 700,000 people in the Florida peninsula.

USA facts

Official Name: United States of America
Population: 324, 057, 300
Form of Government: Constitution-based federal republic
Capital: Washington, D.C.
Area: 9, 826, 630 square kilometres
Major Mountain Ranges: Rocky Mountains, Appalachian Mountains
Major Rivers: Mississippi, Missouri, Colorado
Languages: English, Spanish
Money: U.S. dollar