United States | History, Map, Flag, & Population
网页1 天前 · United States, country in North America, 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 …
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Demographics of the United States - Wikipedia
网页2 天之前 · The U.S. population grew by 1.6 million from 2018 to 2019, with 38% of growth from immigration. [21] Population growth is fastest among minorities as a whole, and according to the Census Bureau's 2020 …
U.S. state | History & Facts | Britannica - Encyclopedia …
网页2024年9月3日 · U.S. state, first-order administrative unit of the United States, one of 50 constituent political entities (four of them called commonwealths) that share sovereignty with the federal government. …
Politics of the United States - Wikipedia
网页1 天前 · Flowchart of the U.S. federal political system. The United States is a constitutional federal republic, in which the president (the head of state and head of government), Congress, and judiciary share powers reserved to …
United States - Colonization, Revolution, Constitution
网页16 小时之前 · United States - Colonization, Revolution, Constitution: When Columbus arrived, he found the New World inhabited by peoples who in all likelihood had originally come from the continent of Asia. Probably these …
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