Goerge Washington By ews Feb 22, 1732 George Washington was born. Period: Feb 22, 1732 to Dec 14, 1799 George Washington's Life Jul 9, 1755 George was with General Braddock when ambushed by the French & Indians Jan 6, 1759 George married Mrs. Martha Dandridge Custis Jun 15, 1775 Elected Commander in Chief of the Continental Army Jun 1, 1789 Washington signed the first act of Congress concerning the administration of oaths. Jun 1, 1789 Washington signed the first act of Congress concerning the administration of oaths. Jan 1, 1790 Washington approved plans for the U.S. Capitol. im not sure the exact date...it doesnt say Dec 15, 1791 The Bill of Rights became law. The first 10 amendments to the Constitution of the United States guarantee basic liberties to Americans. Sep 18, 1793 Washington laid the cornerstone of the U.S. Capitol in Washington, D.C. Dec 14, 1799 George Washington dies.