On July 4, 1776, the thirteen American colonies declared their independence from British rule. This momentous event was marked by the adoption of the Declaration of Independence, a document primarily authored by Thomas Jefferson. The declaration outlined the colonies' grievances against King George III and expressed their desire for self-governance. The signing of the Declaration of Independence took place at the Continental Congress in Philadelphia. This day is now celebrated annually in the United States as Independence Day, symbolizing freedom and the birth of a new nation. Fireworks, parades, and various festivities commemorate this historic occasion.