a compromise where Maine became a free state and Missouri became a slave state and the Missouri compromise line was created, where anything below it was a slave state and anything above it was a free state.
Expansion of territory brings up the question "will it be a slave or free state?" causing sectionalism.
A novel that was published leaking info about what happens/happened to slaves
a political party made by Lincoln in 1854 that, overtime, changed from liberal to conservative
SC secedes from Union
CSA is formed from the states that seceded