The document summarizes key events leading up to the American Civil War:
1) Gold was discovered in California, which became a free state under the Compromise of 1850. Zachary Taylor and Franklin Pierce served as President.
2) The Kansas-Nebraska Act repealed the Missouri Compromise, fueling tensions over slavery in the territories. "Bleeding Kansas" saw violent clashes between pro- and anti-slavery settlers.
3) In 1857, the Dred Scott decision found that slaves were property and Congress could not ban slavery in territories. After Lincoln's election in 1860 on an anti-slavery platform, South Carolina seceded from the Union.