HUSH Timeline By mb19401 Jul 4, 1776 Independence Jul 21, 1788 Ratification of Constitution Ratification of the Constitution Jul 4, 1803 Louisiana Purchase Jan 26, 1820 Missouri Compromise Aug 21, 1831 Nat Turner Slave Rebellion Mar 2, 1836 Texas Independence Feb 2, 1848 Treaty of Guadalupe Hidalgo Jan 29, 1850 Compromise of 1850 Mar 6, 1857 Dredd Scott Decision Dec 20, 1860 South Carolina Secession Sep 17, 1862 Battle of Antietam May 18, 1863 Battle of Vicksburg Jul 1, 1863 Battle of Gettysburg Apr 9, 1865 End of Civil War