United States
English: United States

United States of America


Projection of North America with the United States in green
The United States and its territories
The United States including its territories
CapitalWashington, D.C.
38°53′N 77°01′W / 38°53′N 77°01′W / 38.883; -77.017
Largest cityNew York
40°43′N 74°00′W / 40°43′N 74°00′W / 40.717; -74.000
Official languagesNone at federal level[fn 2]
National languageEnglish[6]
Ethnic groups
By race:
77.1% White
13.3% Black
5.6% Asian
2.6% Other/multiracial
1.2% American Indian
0.2% Pacific Islander
17.6% Hispanic or Latino
82.4% non-Hispanic or Latino
69% Christian
24% Unaffiliated
3% Unanswered
2% Jewish
1% Muslim
1% Buddhist
1% Hindu
1% Other
GovernmentFederal presidential constitutional republic
• President
Donald Trump
Mike Pence
Nancy Pelosi
John Roberts
House of Representatives
July 4, 1776
March 1, 1781
September 3, 1783
June 21, 1788
March 24, 1976
• Total area
3,796,742 sq mi (9,833,520 km2)[9] (3rd/4th)
• Water (%)
• Total land area
3,531,905 sq mi (9,147,590 km2)
• 2017 estimate
325,719,178[10] (3rd)
• 2010 census
308,745,538[11] (3rd)
• Density
85/sq mi (32.8/km2) (179th)
GDP (PPP)2017 estimate
• Total
$19.390 trillion[12] (2nd)
• Per capita
$59,501[12] (11th)
GDP (nominal)2017 estimate
• Total
$19.390 trillion[12] (1st)
• Per capita
$59,501[12] (7th)
Gini (2015) 39.0[13]
HDI (2015)Increase 0.920[14]
very high · 10th
CurrencyUnited States dollar ($) (USD)
Time zoneUTC−4 to −12, +10, +11
• Summer (DST)
UTC−4 to −10[15]
Date formatmm/dd/yyyy
Driving sideright[16]
Calling code+1
ISO 3166 codeUS
Internet TLD.us

The United States of America (often called the United States, the U.S., the USA, or America) is a federal constitutional republic made of fifty states and a federal district. The forty-eight contiguous states and Washington, D.C., the capital district, are in central North America, between the Pacific and Atlantic Oceans. These forty-eight states are bordered by Canada to the north and Mexico to the south.

Two states are not next to the other forty-eight states. The state of Alaska is in the northwest of the continent. Canada is east of Alaska. Russia is west of Alaska across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific.

The United States also owns several territories, or insular areas, in the Caribbean and Pacific.

The United States is 3.79 million square miles (9.83 million km²). There are about 306 million people living in it. This makes the United States the third or fourth largest country by total area, and third largest by land area and by population. The United States is one of the world's most ethnically diverse and multicultural nations. This is because of large-scale immigration from many countries.[17] The U.S. economy is the largest national economy in the world, with an estimated 2016 gross domestic product (GDP) of US$ 18.57 trillion (23% of the world total based on nominal GDP and almost 21% at purchasing power parity).[18][19]

The nation was founded by thirteen colonies of Great Britain, which was along the Atlantic seaboard. On July 4, 1776, they issued the Declaration of Independence, which stated their independence from Britain and their formation of a cooperative union. The rebellious states defeated Great Britain in the American Revolutionary War, the first successful colonial war of independence.[20] The Philadelphia Convention adopted the current United States Constitution on September 17, 1787; its ratification the following year made the states part of a single republic with a strong central government. The Bill of Rights, comprising ten constitutional amendments guaranteeing many fundamental civil rights and freedoms, was ratified in 1791.

In the 19th century, the United States acquired land from France, Spain, the United Kingdom, Mexico, and Russia, and annexed the Republic of Texas and the Republic of Hawaii. Disputes between the agrarian South and industrial North over states' rights and the expansion of the institution of slavery provoked the American Civil War of the 1860s. The North's victory prevented a permanent split of the country and led to the end of legal slavery in the United States. By the 1870s, the national economy was the world's largest. The Spanish–American War and World War I confirmed the country's status as a military power. In 1945, the United States emerged from World War II as the first country with nuclear weapons, a permanent member of the United Nations Security Council, and a founding member of NATO. The end of the Cold War left the United States as the sole superpower. The country accounts for approximately 50% of global military spending and is the leading economic, political, and cultural force in the world.[21]



The official date of the founding of the United States is July 4, 1776, when the second Continental Congress, representing the 13 British secessionists colonies, signed the Declaration of Independence. However, the structure of the Government had a big change in 1788 when the Articles of Confederation were replaced by the Constitution of the United States. The date on which each state adopted the Constitution tends to be taken as the date on which the state became part of the Union.

Civil War (1861–65)

As the nation gained new territory, it was divided on the subject of slavery. The northern states of the country opposed the slavery of African Americans and many of them had already been abolished. The southern states of the country said they needed slaves. The economy of the north grew industrially, while the south was growing on an agricultural basis. Following this division of economy and politics, the southern states decided to create a new independent nation, propitiating the beginning of the war by the northern states who did not recognize the right of secession. After the Civil War between the Confederate States (south) and the Union (north), slavery was abolished throughout the American territory.

20th century

After the Spanish–American War in 1898, the United States was slowly acquiring an ever-increasing influence in the world. After the first World War, and then the second, American influence on aspects such as economics, science, technology, and culture grew to new levels. Because of the Cold War and the political, ideological and social controversy that resulted, the role of military and international affairs grew in politics at that time. Important events were also held at that time, such as the civil rights movement in the 1960s, and the landing of Apollo 11 on the Moon in 1969.

Modern history

See also: September 11 attacks, War in Afghanistan (2001–present), Iraq War, Great Recession, and International military intervention against ISIL
A large cloud of dust surrounds the city of New York after the collapse of the Twin Towers after the terrorist attack of September 11, 2001.

Under President George H. W. Bush, the country took on a global dominant role worldwide, as in the Gulf War (1991). The longest economic expansion in modern American history, from March 1991 to March 2001, spanned the presidency of Bill Clinton and the dot-com bubble.[22] A civil lawsuit and a sex scandal led to his impeachment in 1998, although he managed to finish his period. The 2000 presidential elections, one of the most competitive in American history, they were settled by the Supreme Court: George W. Bush, son of George H. W. Bush, became president, even though he gained fewer votes than his opponent Al Gore.[23]

On September 11, 2001, the terrorists of the Al-Qaeda group attacked the twin towers of the World Trade Center in New York City (which were destroyed) and the Pentagon near Washington, D.C., in a series of attacks that ended the life of nearly three thousand people. In response, the Bush administration launched the "War on Terror." At the end of 2001, U.S. forces invaded Afghanistan, toppled the Taliban government and destroyed Al-Qaeda's training camps. Taliban insurgents continue to fight a guerrilla war. In 2002, Bush began to push for a regime change to take place in Iraq.[24][25] With NATO's lack of support and without a clear UN order for military intervention, Bush organized the coalition of the willing; The coalition forces quickly invaded Iraq in 2003 and toppled the statue of dictator Saddam Hussein. The following year, Bush was re-elected as the most voted president in an election.

On November 4, 2008, during a global economic downturn, Barack Obama was elected president, having been the first African American to take office. In May 2011, American Special forces managed to kill Osama bin Laden, hiding in Pakistan. The following year, Barack Obama was re-elected. Under his second term, he led the war against the Islamic State and restored diplomatic relations with Cuba.

On November 8, 2016, the Republican Party leader Donald Trump defeated former First Lady Hillary Clinton for presidency in an unusual election[26] and whose plans have been described by political analysts as populist, protectionist and nationalist, assuming office on January 20, 2017.

Other Languages
Alemannisch: USA
አማርኛ: አሜሪካ
aragonés: Estatos Unitos
arpetan: Ètats-Unis
Aymar aru: Istadus Unidus
Bahasa Banjar: Amirika Serikat
Bân-lâm-gú: Bí-kok
Basa Banyumasan: Amerika Serikat
беларуская (тарашкевіца)‎: Злучаныя Штаты Амэрыкі
भोजपुरी: अमेरिका
Bikol Central: Estados Unidos
Chavacano de Zamboanga: Estados Unidos de America
Chi-Chewa: United States
chiTumbuka: United States
dansk: USA
Deitsch: Amerikaa
ދިވެހިބަސް: އެމެރިކާ
emiliàn e rumagnòl: Stat Unî
English: United States
español: Estados Unidos
Esperanto: Usono
estremeñu: Estaus Uníus
eʋegbe: United States
Fiji Hindi: United States
føroyskt: USA
français: États-Unis
贛語: 美國
Gĩkũyũ: United States
𐌲𐌿𐍄𐌹𐍃𐌺: 𐌰𐌼𐌰𐌹𐍂𐌹𐌺𐌰
गोंयची कोंकणी / Gõychi Konknni: अमेरिकेचीं संयुक्त राज्यां
客家語/Hak-kâ-ngî: Mî-koet
한국어: 미국
Bahasa Hulontalo: Amerika Serikat
Ido: Usa
বিষ্ণুপ্রিয়া মণিপুরী: তিলপারাষ্ট্র
Bahasa Indonesia: Amerika Serikat
ᐃᓄᒃᑎᑐᑦ/inuktitut: ᐊᒥᐊᓕᑲ
isiZulu: IMelika
íslenska: Bandaríkin
Kabɩyɛ: Etaazuunii
kalaallisut: Naalagaaffeqatigiit
Kapampangan: Estados Unidos
kernowek: Statys Unys
Kiswahili: Marekani
Kreyòl ayisyen: Etazini
Lingua Franca Nova: Statos Unida de America
Livvinkarjala: Amerikan Yhtysvallat
la .lojban.: mergu'e
Luganda: Amerika
Malagasy: Etazonia
مصرى: امريكا
Bahasa Melayu: Amerika Syarikat
Baso Minangkabau: Amerika Sarikat
Mìng-dĕ̤ng-ngṳ̄: Mī-guók
Dorerin Naoero: Eben Merika
Na Vosa Vakaviti: United States
Nederlands: Verenigde Staten
Nēhiyawēwin / ᓀᐦᐃᔭᐍᐏᐣ: ᑭᐦᒋ ᒨᐦᑯᒫᓇᐢᑭᕀ
Norfuk / Pitkern: Yunitid Staits o' Merika
norsk: USA
norsk nynorsk: USA
oʻzbekcha/ўзбекча: Amerika Qoʻshma Shtatlari
Pangasinan: Estados Unidos
پنجابی: امریکہ
ភាសាខ្មែរ: សហរដ្ឋអាមេរិក
Tok Pisin: Ol Yunaitet Stet
Plattdüütsch: USA
português: Estados Unidos
reo tahiti: Fenua Marite
rumantsch: Stadis Unids
ᱥᱟᱱᱛᱟᱲᱤ: ᱥᱮᱞᱮᱫ ᱯᱚᱱᱚᱛ
Sesotho sa Leboa: United States of America
Setswana: USA
sicilianu: Stati Uniti
slovenčina: Spojené štáty
словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ: Амєрїканьскꙑ Ѥдьнѥнꙑ Дрьжавꙑ
Sranantongo: Kondre Makandrameki
srpskohrvatski / српскохрватски: Sjedinjene Američke Države
Basa Sunda: Amérika Sarikat
svenska: USA
ไทย: สหรัฐ
Tsetsêhestâhese: United States
Twi: Amerika
Thuɔŋjäŋ: Pawuut Matiic
Vahcuengh: Meijgoz
Tiếng Việt: Hoa Kỳ
Volapük: Lamerikän
文言: 美國
吴语: 美国
Xitsonga: Amerikha
粵語: 美國
žemaitėška: JAV
中文: 美国