John Adams- 1778-1791 By dgentzel Feb 1, 1778 The start of John Adams voyage to France Mar 1, 1780 The act for the gradual abolition of slavery Sep 3, 1783 Treaty of Paris Sep 17, 1787 U.S. Constitution signed Jun 21, 1788 U.S. Constitution ratified Dec 15, 1791 Bill of Rights signed
