Civil War Timeline By boykid Apr 15, 1793 Invention of the cotton gin Feb 19, 1819 Missouri Compromise Jan 29, 1850 Compromise of 1850 Mar 20, 1852 Uncle Tom's Cabin May 30, 1854 Kansas Nebraska Act Mar 6, 1857 Dred Scott Supreme Court descision Aug 21, 1858 Lincoln-Douglas Debates Oct 16, 1859 John Brown's Raid on Harper's Ferry Nov 6, 1860 Election of Lincoln Dec 20, 1860 Seccesion of South Carolina Apr 12, 1861 Attack on Fort Sumter