Why does the United States have no ancient history?

North America was originally a settlement of Indians. By the end of the 15th century, Spain, Britain and other countries began to immigrate to North America. The current United States was officially founded in 1776, less than 300 years ago. Basically, it can be said that they are all countries from which immigrants originally immigrated, which is why there is a saying that the United States has no history.

The United States was originally a settlement of Indians. At the end of the 15th century, Spain, the Netherlands, France, the United Kingdom and others immigrated here one after another. Before the 18th century, Britain established 13 British North American colonies on 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. George Washington served as commander of the Continental Army and issued the Declaration of Independence, declaring the formal establishment of the United States of America. The War of Independence ended in 1783, and Britain recognized the independence of 13 colonies. In 1787, the United States Constitution was adopted and a federal state was established. From 1861 to 1865, the Civil War broke out in the United States. Abraham Lincoln led the free states of the North to victory over the slave states of the South. The United States has since ended its "half-slave and half-free state", begun to implement liberal capitalism in an all-round way, and embarked on the path of rapid development. From 1803 to 1959, the territory continued to expand through purchases and wars.