The revolution that led to the founding of the U.S. Republic was the American Revolution, which took place from 1775 to 1783. The colonies fought against British oppression, driven by dissatisfaction with taxation without representation and a desire for self-governance. Key events, such as the Boston Tea Party and the battles of Lexington and Concord, ignited the conflict. Ultimately, the signing of the Declaration of Independence in 1776 marked a pivotal moment in which the colonies asserted their rights. The revolution resulted in the establishment of a democratic government structured by the Constitution and the Bill of Rights.