- 美国 - 维基百科，自由的百科全书
“ United States of America ”，由 約翰·迪金森 編寫于1776年6月17日的聯邦條款第二草稿出現 [52]，縮寫是U S A 。 作為法定政權的名稱，它的應用度並没有US廣泛，使用最多的地方就是在體育賽事上。
- United States | History, Map, Flag, Population | Britannica
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
Explore All Countries United States North America Page last updated: December 23, 2025
- U. S. facts and figures - USAGov
Learn about the United States, including American holidays, the American flag, presidents, census data, and the U S Constitution
- A Country Profile - Destination USA - Nations Online Project
Discover the United States of America: vacation, accommodation, hotels, attractions, festivals, events, tourist boards, state parks, nature, tours, and much more
- USA Map | Maps of the United States of America
The United States of America (USA), for short America or United States (U S ) is the third or the fourth-largest country in the world It is a constitutional based republic located in North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Mexico and Canada
- United States - Wikipedia
Documented use of the phrase "United States of America" dates back to January 2, 1776 On that day, Stephen Moylan, a Continental Army aide to General George Washington, wrote a l
- United States Population (2025) - Worldometer
Population of the United States: current, historical, and projected population, growth rate, immigration, median age, total fertility rate (TFR), population density, urbanization, urban population, country's share of world population, and global rank Data tables, maps, charts, and live population clock
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