History of American Slavery By Chazcantillon88 Sep 3, 1783 End of Revolutionary War Jul 13, 1787 Passage of Northwest Ordinance of 1787 Sep 7, 1787 Signing of the Constitution 1794 Invention of Cotton Gin 1803 Louisiana Purchase Jun 18, 1812 Start of War of 1812 Apr 27, 1816 Passage of Tariff of 1816 1820 Missouri Compromise May 28, 1830 Indian Removal Act Jan 1, 1831 Garrison begins The Liberator 1831 Start of the Trail of Tears Aug 21, 1831 Nat Turner Rebellion Mar 2, 1836 Declaration of Rexas Independence 1845 Douglas publishes Autobiography Aug 8, 1846 Wilmot Proviso Jan 24, 1848 Gold Discovered in California Feb 2, 1848 Treaty of Guadalupe Hidalgo Jan 29, 1850 Compromise of 1850 Mar 20, 1852 Stowe publishes Uncle Tom’s Cabin 1853 Gadsden Purchase 1854 Start of Bleeding Kansas Mar 20, 1854 Birth of Republican Party May 30, 1854 Kansas-Nebraska Act May 22, 1856 Attack on Charles Sumner Mar 6, 1857 Dred Scott Decision 1859 Delaney publishes Blake Oct 16, 1859 John Brown’s Raid Nov 6, 1860 Lincoln Elected President Dec 20, 1860 South Carolina Secedes Apr 12, 1861 Attack on Fort Sumter Jan 31, 1865 Passage of 13th Amendment Jul 28, 1868 Passage of 14th Amendment