History Assignment By nicole_lake May 1, 1787 Articles of Confederation Sep 17, 1787 The New Constitution Jun 21, 1788 New Hampshire ratifies the Constitution Apr 11, 1850 The Compromise of 1850 Apr 11, 1854 Missouri Compromise was repealed by the Kansas-Nebraska Act. Jan 1, 1863 The Emancipation Proclemation Apr 11, 1884 The Kansas-Nebraska Act of 1854 Couldn't find exact date