Founding Fathers By DestinyKiefer Sep 28, 1771 Battle of Yorktown Dec 16, 1773 Boston Tea Party Apr 19, 1775 Battles of Lexington and Concord Jul 4, 1776 Declaration of Independecne was signed Jun 21, 1788 Constitution was Ratified Apr 30, 1789 Inauguration of George Washington Sep 19, 1796 George Washingtons farewell address Dec 14, 1799 Death of George Washington Aug 19, 1803 Marbury V. Madison Undicided date Aug 20, 1917 Winter of Valley Forge Wasnt an exact date for this winter.