United States History encompasses the events, people, and developments that have shaped the nation from its founding to the present. It began with the arrival of Indigenous peoples, followed by European exploration and colonization. The thirteen original colonies declared independence from Great Britain in 1776, leading to the formation of the United States and the adoption of the Constitution in 1787. Throughout its history, the United States has experienced significant events such as the Civil War, the abolition of slavery, and the civil rights movement. The nation has also expanded its territory and influence, becoming a global leader in various fields, including technology, culture, and politics.