Unit 9 By Alexa_Espinal Dec 20, 1854 Kansas- Nebraska Act Dec 20, 1857 Dred Scott decision Dec 20, 1857 Panic of 1857 Dec 20, 1858 Lincoln-Douglas debates Dec 20, 1860 South Carolina secedes from Union Dec 20, 1861 First Battle of Bull Run Dec 20, 1862 Seven Days' Battle Dec 20, 1862 Second Battle of Bull Run Dec 20, 1863 Battle of Gettysburg Dec 20, 1864 Battle of Cold Harbor Dec 20, 1864 Lincoln defeats McClellan for presidency Dec 20, 1865 Lincoln assassinated Dec 20, 1867 Reconstruction Act Dec 20, 1870 Fifteenth Amendment ratified Dec 20, 1877 Reconstruction ends