Compromise of 1850 California applied to be a free state. It increased sectionalism because there was one more state that wanted to be free and it aggravated the south
Bleeding Kansas 1855 People snuck into Kansas illegally to vote for both slavery and anti slavery. Proslavery mobs attacked the town of Lawrence destroying antislavery government
Harper's Ferry 1859 John Brown has the idea to collect guns and slaves to fight back. No slaves joined and eventually John and his men were captured and were killed.