The historical document that declared independence from British rule is the Declaration of Independence, adopted on July 4, 1776, by the Continental Congress in the Thirteen American Colonies. Drafted primarily by Thomas Jefferson, the document outlines the colonies' grievances against King George III and articulates the principles of individual liberty and the pursuit of happiness. It asserts that governments derive their just powers from the consent of the governed and that people have the right to revolt against tyranny. The Declaration of Independence is a foundational text in American history, symbolizing the values and aspirations of the United States.