Why is America called the United States of America?

America is a transliteration of English America.

The United States refers to a federal country whose main purpose is to unite people and realize democracy, such as the United States of America and the United States of Mexico. These countries are all democratic and federal countries.

Federalism corresponds to unitary system.

The United States of America (hereinafter referred to as the United States) is a federal constitutional country, which consists of Washington, D.C., 50 states, Guam and many other overseas territories. With a land area of 9.63 million square kilometers (plus the United States sovereign part of the Great Lakes and coastal waters such as estuaries, harbors and inland seas) and a population of 320 million, it is an immigrant country with a common English.

North America was originally inhabited by Indians. /kloc-at the end of 0/5, Spain, the Netherlands and other countries began to immigrate here, and Britain came from behind. 1773, Britain has established 13 colonies. 1775, the American people's war of independence against the British colonists broke out. 1July 4, 776, the second continental congress was held in Philadelphia, by George? Washington served as commander-in-chief and officially announced the establishment of the United States of America through the Declaration of Independence. After the War of Independence, 1788, George? Washington was elected as the first president of the United States. After the Civil War, the American capitalist economy rose rapidly. /kloc-at the beginning of the 0/9th century, the United States began to expand abroad. After World War II, the United States greatly increased its national strength and became the only hegemonic superpower in the world today.

2019165438+14 October, the United States officially started the procedure of withdrawing from the Paris Climate Agreement. On July 7, 2020, the US government officially announced its withdrawal from WHO, which took effect on July 6, 2002/KLOC-0.

Folded position context

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 added, the coastal waters such as estuaries, harbors and inland seas are about 100 square kilometers, with an area of 9.63 million square kilometers.

The topography of the United States is varied, especially in the west. There are coastal plains on the east coast, which are wide in the south and narrow in the north. There are no coastal plains in northern New Jersey, but there are some glacial sedimentary plains in Long Island and other places. Behind the coastal plain is a hilly area with undulating terrain, extending all the way to the Appalachian Mountains in North Carolina and New Hampshire, with an altitude of 1, 830 meters. To the west of the Appalachian Mountains is the inner plain of the Midwest of the United States, which is relatively flat. The Great Lakes and the Mississippi River Basin, the fourth largest river in the world, are also located here. To the west of the Mississippi River, the topography of the internal plain began to rise, and finally it entered the great plain with a vast area and few topographical features in the central United States.

In the west of the Great Plains, there is the majestic Rocky Mountains, which bisects the American mainland from south to north, with the highest peak of 4,270 meters in Colorado. In the past, volcanic activity in the Rocky Mountains was frequent. There is only one area left (the super volcano in Yellowstone National Park, Wyoming-probably the largest active volcano in the world).