The American Revolution began as tensions grew between the British colonies in America and the British Parliament. The colonies objected to taxes imposed by Parliament without colonial representation. This led to protests by colonists and growing conflict with Britain. Key events like the Boston Tea Party and Intolerable Acts increased tensions. War officially began at Lexington and Concord in 1775. The colonies declared independence in 1776 and fought for independence from Britain, which they achieved after the Revolutionary War ended in 1783. The new nation then drafted the Constitution and Bill of Rights to outline the new government.