HUSH 7/4/1776 Independence By kh19068 Jul 4, 1776 Independence Sep 17, 1787 Ratification of Constitution Jul 4, 1803 Louisiana Purchase July 4, 1803 Aug 21, 1831 Nat Turner Rebellion August 21 – 22, 1831 Feb 2, 1848 Treaty of Guadelupe Hidalgo Feb 14, 1850 Missouri Compromise Sep 18, 1850 Compromise of 1850 Mar 6, 1857 Dred Scott Decision Feb 4, 1861 South Carolina Secession May 18, 1863 Battle of Vicksburg Jul 1, 1863 Battle of Gettysburg Sep 17, 1863 Battle of Antietam