Official status
No established national religion; the First Amendment prohibits federal establishment of religion.
Status reference
Practice United States
No questions here on Civilizations, Historical flags, Turning points — nothing recorded for United States.
United States
US / USA 39.8°, -98.6°
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting 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 semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's fourth-largest total area and third-largest population, exceeding 341 million.
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WHAT PEOPLE ARE CALLED
American
These are English demonyms for people from United States. A demonym describes a connection to a place; it does not mean everyone shares an ethnicity, language or religion.
Demonym source: mledoze/countries · Download the attributed dataset (ODbL)SAME LAND, DIFFERENT WORLDS
Civilizations, flags & standards
Modern borders are a starting point for exploring the past. These cultures and states occupied some of the same land; they were not the same country. Dates describe each civilization or state as a whole, not continuous rule over every place listed.
A sourced civilization and flag trail has not been added for United States yet. No ancient flag is inferred from the modern one.
Explore the history of this land · Browse civilizations & empires
Turning points
A curated timeline is not available yet. Explore the country's history and the historical figures below.
Read the historical overview →Religion: state & society
Practice this section around the world →
An official religion is a legal status. The largest religious group is a population measure. Neither describes every person's beliefs.
Religious affiliation
Largest religious group: Christianity
2020 estimates (Pew, published 2025)Christianity64%
All-age population estimate. This is affiliation, not attendance or belief intensity; only the largest religious group is shown.
Affiliation source & methodologyBEYOND THE MAP
United States in the study desk
Places and things the general-knowledge library connects to United States. Open one to follow its connections, then practise them with typed recall.
Geography 53
Food & drink 28
Choose your next rabbit hole
Where it is
Languages
Share of the population that speaks each. Click one to see every country that speaks it.
What it sells, and to whom
Every line is a thread: click a commodity or a partner to see who else trades in it.
Trades with
Natural resources
Farms and fisheries
- maize
- soybeans
- milk
- wheat
- sugar beets
- sugarcane
Largest cities
| New York City | 8,258,035 |
| Los Angeles | 3,820,914 |
| Chicago | 2,664,452 |
| Houston | 2,314,157 |
| Phoenix | 1,650,070 |
Wars and conflicts
Conflicts this country is attached to. Click one to see the others. Each says what kind of claim it is: a principal belligerent is hand-checked against the modern state that succeeded the power that fought, while a recorded participant comes from the bulk import, which does not separate combat from funding, basing, occupation or reconstruction. Neither list is complete, so a country missing from a war may still have taken part — which is why the quiz no longer asks who fought in what.
World War II1939–1945
principal belligerent
World War I1914–1918
principal belligerent
American Civil War1861–1865
principal belligerent
Spanish-American War1898
principal belligerent
Kosovo War1998–1999
principal belligerent
War in Afghanistan (2001-2021)2001–2021
principal belligerent
First Libyan Civil War2011
principal belligerent
Vietnam War1955–1975
principal belligerent
Korean War1950–1953
principal belligerent
Syrian Civil War2011–2024
principal belligerent
Gulf War1990–1991
principal belligerent
American Revolutionary War1775–1783
principal belligerent
Iraq War2003–2011
principal belligerent
Iran–Iraq War1980–1988
recorded participant
War of 18121812–1815
principal belligerent
Mexican-American War1846–1848
principal belligerent
Twelve-Day War2025
recorded participant
Form of government
Constitutional federal republic.
Money, belief and alliances
Money
Belongs to
Organization of American States
Organization for Security and Co-operation in Europe
North American Free Trade Agreement
Arctic Council
United Nations
World Meteorological Organization
International Energy Agency
International Holocaust Remembrance Alliance
International Development Association
Organisation for the Prohibition of Chemical Weapons
NATO
International Centre for Settlement of Investment Disputes
World Bank
Australia Group
Asia-Pacific Economic Cooperation
Asian Development Bank
Climate and geography
mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains
Climate zone
Highest point
Landmarks and landscapes
Northern hemisphere.
In charge right now
Figures from its history
George Washington
First president
George Washington was a Founding Father and the first president of the United States, serving from 1789 to 1797.
Abraham Lincoln
President through the Civil War
Abraham Lincoln was the 16th president of the United States, serving from 1861 until his assassination in 1865.
Martin Luther King Jr.
Civil rights leader
Martin Luther King Jr. was an American civil rights activist and Baptist minister who was a prominent leader of the civil rights movement from 1955 until his assassination in 1968.
Franklin D. Roosevelt
President, 1933-1945
Franklin Delano Roosevelt, also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945.
Leaders before them
Checked facts
Most of this page is imported in bulk and carries no source of its own. These entries were checked by hand against the source named, and are reapplied after every dataset rebuild so a refetch cannot quietly put the old value back.
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Continents
— Seven-continent model. A country spanning two continents is filed under the one containing its capital; the other is accepted too.
The imported list was unordered and included overseas territory, so its first entry was not the continent the country is in.
Source · true as of 2026-09-11 · checked 2026-09-11 -
Member of nato
— Full member states only, as the organisation itself lists them.
The imported member_of list is out of date for this organisation and is not asked about.
Source · true as of 2026-09-11 · checked 2026-09-11
Corrected in an AI-assisted review of the imported data (2026-09-22), not yet checked against a named source: cities, economy, famous, founded, highest point, official languages.