How did America come from?

The United States was the first place where Indians lived. At the end of 15, Spain, the Netherlands, France and Britain immigrated here one after another. 13 Before the 8th century, Britain established13 British North American colony on the Atlantic coast of the United States.

1775, the American people broke out the war of independence against the colonial rule of the British Empire. 1776 On July 4th, the Second Continental Congress was held in Philadelphia. George Washington was the commander-in-chief of the Continental Army and issued the Declaration of Independence, announcing the formal establishment of the United States of America. 1783 At the end of the War of Independence, Britain recognized the independence of 13 colonies. 1787, the constitution of the United States was passed, and a federal state was established.

Extended data:

First, early civilization

More than 40 thousand years ago, the ancestors of Indians arrived in North America through Asia, and then to Central America and South America; When Columbus arrived in what he thought was the New World, about 30 million Indians lived in America. Today, about 654.38+50 million Indians live in the United States and Canada.

The composition of these indigenous people is very different in heredity, language and society. It is estimated that in the15th century, there were at least 400 unrelated and distinctive cultural forms in the north of the Rio Grande, with various body types and language families.

About 10 thousand years ago, another group of Asians moved to northern North America, which became the Eskimos. The first white people to come to America may be vikings. Some people think that they went to the east coast of North America before 1000 years ago.

Second, the location background.

The United States is the second largest country in the Americas, and its territory includes the mainland of the United States, Alaska in the northwest of North America and the Hawaiian Islands in the central Pacific Ocean. It covers an area of 93726 10/0 square kilometers (including 9158,960 square kilometers of land and about 200,000 square kilometers of inland waters).

If the U.S. sovereign part of the Great Lakes is about 6,543.8+0.7 million square kilometers, and the coastal waters such as estuaries, harbors and inland seas are about 6,543.8+0 million square kilometers, with an area of 9.63 million square kilometers, if only the land area is counted, the United States ranks third, only behind Russia and China, and before Canada.

The original version of the CIA World Survey from 1989 to 1996 listed the total area of the United States as 93726 10 square kilometers. From 1997 km2 to 962909 1 km2, from 2004 to 963 1 4 1 420 km2, and from 2006 to 963 1 420 km2.

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