Kansas-Nebraska act 1854 It divided the Nebraska territory into the Nebraska and the Kansas territories. Allowed territories to vote on whether it would be a free or a slave state.
Fred Scott decision 1856 A slave taken into free states by his master, he declared that he was, so he sued for his freedom. But they said he was not a U.S. citizen, so he could not sue in U.S. courts.
Harper's ferry 1859 John Brown captured weapons from Harper's ferry, to arm slaves for battle, but no slaves joined him. He was captured by the U.S., and executed.
Election of 1860 Lincoln and Breckinredge were fighting for presidency.The north wanted Lincoln and the south wanted Breckinrige. The north had more people so Lincoln won.