THE UNDERGROUND RAILROAD By KRYSTINMICHELLE Period: Jan 2, 1790 to Dec 31, 1870 THE UNDERGROUND RAILROAD May 4, 1790 The Beginning late 1790's Isaac Hopper begins helping fugitives flee Nov 24, 1833 AASS Formation American Anti-Slavery Society is founded Sep 24, 1841 JOSIAH HENSON Fugitive Slave Josiah Henson creates the "Dawn Insititute", where fugitives learn trades