Missouri Compromise (1820)
Nullification Crisis (1832)
Wilmot Proviso (1846)
Compromise of 1850
Fugitive Slave Law
Uncle Tom's Cabin (1852)
Kansas Nebraska Act (1854)
Dred Scott v. Sandford (1857)
Lincoln-Douglas Debates (1858)
John Brown's Raid on Harpers Ferry (1859)
Election of 1860
We Are Out
Civil War (1861-1865)