The historical event associated with July 4, 1776, is the adoption of the Declaration of Independence in the United States. This document was drafted primarily by Thomas Jefferson and declared the thirteen American colonies' separation from British rule. The signing of this declaration marked the official birth of the United States as an independent nation, celebrating ideals such as liberty, equality, and the right to self-govern. The day is commemorated annually as Independence Day, featuring fireworks, parades, and various festivities, reflecting patriotic sentiments and the historical journey of the nation.