American revolution By Abasta Period: Apr 19, 1775 to Sep 3, 1783 American Revolution Begins Period: Jun 14, 1775 to Dec 23, 1783 George Washington appointed commander in chief Jul 4, 1776 congress adopts the Declaration of Independence Period: Sep 1, 1777 to Oct 7, 1777 The battle of Saratoga Nov 15, 1777 Congress approves the articles of confederation Feb 6, 1778 Treaty of alliance with France Oct 19, 1781 Britian surrenders after the battle of Yorktown Sep 3, 1783 Treaty of Paris officially ends the revolution