The American Revelution (US History Assignment) By Valkyrie Dec 16, 1773 Boston Tea Party Because of Britains outrageous taxes, men disguised as Native Americans rushed a boat and dumped tea into the Boston Harbor. Apr 19, 1775 The Battle of Lexington and Concord The start of the war for independance. Period: Apr 19, 1775 to Sep 3, 1783 The American Revolution Jun 16, 1775 Battle of Bunker Hill Dec 25, 1776 Crossing of the Delaware Dec 19, 1777 Valley Forge Sep 28, 1781 Battle of Yorktown Oct 17, 1781 Cornwallis surrenders Oct 19, 1781 Victory at Yorktown Sep 3, 1783 Treaty of Paris