It's the Unites States because it is composed of fifty individual states
In 1878 the US was called the United States of America.
No the United States of America was never known as the United States of North America.
It's the abbreviation of The United States of America.
It was called the Confederacy or the Confederate States of America.
The USA is a country - its continent is called North America
The New World, or British America, or the British Colonies. Really, The US of A did not exist as one country before it became independent of Britain.
North America
no
The formal name of the US is the United States. It is also called the United States of America or just America.
US = U.S.A. = United States of America They are called Americans
US = U.S.A. = United States of America They are called Americans
In probably when the DI (Declaration of Independence) was signed it was the United States of America, so US is short for United States of America or it can be called USA. Another answer: Because US is short for USA, which stands for United States of America. Besides, there are many other countries in America. America was originally the name for the entire Western Hemisphere