The Declaration of Independence, adopted on July 4, 1776, holds immense significance as it formally established the Thirteen Colonies' assertion of independence from British rule. Drafted primarily by Thomas Jefferson, it articulated foundational Enlightenment principles, such as natural rights and the social contract, asserting that governments derive their power from the consent of the governed. This document not only inspired the American Revolution but also influenced numerous global movements for independence and democratic governance. It solidified the ideals of liberty, equality, and the pursuit of happiness, shaping American identity and serving as a blueprint for future emancipation and civil rights struggles.