United States - Wikipedia
The United States of America (USA), commonly known as 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.
United States | History, Map, Flag, & Population | Britannica
1 天前 · The United States is a country in North America that is a federal republic of 50 states. Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the mid-Pacific Ocean.
United States Facts | Britannica
The United States is a country in North America that is a federal republic of 50 states. Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the mid-Pacific Ocean.
United States - The World Factbook
2024年11月12日 · Buoyed by victories in World Wars I and II and the end of the Cold War in 1991, the US remains the world's most powerful nation state. Since the end of World War II, the economy has achieved relatively steady growth, low unemployment, and rapid advances in …
United States - Simple English Wikipedia, the free encyclopedia
The United States of America (USA), commonly known as the United States (U.S.) or simply America, is a sovereign country mostly in North America. It is divided into 50 states. Forty-eight of these states and the District of Columbia border each other between the …
United States - National Geographic Kids
The United States of America is the world's third largest country in size and nearly the third largest in terms of population. Located in North America, the country is bordered on the...
United States summary - Encyclopedia Britannica
United States, officially United States of America, Country, North America. It comprises 48 conterminous states occupying the mid-continent, Alaska at the northwestern extreme of North America, and the island state of Hawaii in the mid-Pacific Ocean.