- If you are a citizen of USA, you are
called an American, and probably speak the official language -- English.
- The Capital of USA
is Washington, D.C..
- The population of USA is 299598000 and
its area is 9631418 sq. km.
- The GDP of USA is 15.7 billion US$ and
its currency is the 'Dollar'.
- The Internet TLD of USA is .us .gov .edu .mil .um and its
international calling code is +1.