Events Leading to Civil War By facebooker_100004610914145 May 17, 1820 The Missouri Compromise May 17, 1827 The state of New York abolishes slavery. May 17, 1838 Robert Purvis leads the Underground Railroad, it is started then. May 17, 1850 Congress implements several measures forming the Compromise of 1850. May 17, 1852 Harriet Beecher Stowe publishes Uncle Tom's Cabin. There are many mixed feelings. May 17, 1854 Nebraska-Kansas Act is passed. May 17, 1855 "Bleeding Kansas" is given to Kansas. Killing and unrest has spread through the state. May 17, 1857 Supreme court ruling in Dred Scott case declares Missouri Compromise unconstitutional May 17, 1859 Johnny Brown attacks Harper Ferry, Virginia. He he arrested and executed. May 17, 1860 Lincoln’s election