A brief introduction to the United States

1. American abbreviation: USA, USA, USA.

2. The UnitedStatesofAmerica (UnitedStates), referred to as "the United States" for short, is a federal and constitutional country composed of many overseas territories such as Washington, D.C., 5 states and Guam. Its main part is located in the central part of North America. The initial edition of the World Survey by the CIA from 1989 to 1996 shows that the United States has a total area of 9.373 million square kilometers and a population of 33 million. It is an immigrant country with common English.

3. The United States used to be a settlement of Indians, but at the end of 15th century, Spain, Holland, France, Britain and others immigrated here one after another. Before the 18th century, Britain established 13 British North American colonies along the Atlantic coast of the United States. In 1775, the American people's war of independence broke out against the colonial rule of the British Empire. On July 4, 1776, the Second Continental Congress was held in Philadelphia, with George Washington as the commander-in-chief of the Continental Army, and the Declaration of Independence was issued, announcing the formal establishment of the United States of America. At the end of the War of Independence in 1783, Britain recognized the independence of 13 colonies. In 1787, the Constitution of the United States was adopted and a federal state was established.

4. From 1861 to 1865, the American Civil War broke out. Abraham lincoln led the free state in the north to defeat the slave-holding state in the south. Since then, the United States has ended its "semi-slave and semi-free state" and started to implement free capitalism in an all-round way, embarking on the road of rapid development. From 183 to 1959, the territory continued to expand by means of purchase and war.