Load up to the civil war

2. the movement to end slavery
8. system where enslaved people are treated as personal property
11. a law that created the Kansas and Nebraska territories
13. a simple machine that separates seeds from cotton fiber,
14. an American statesman and a key figure in creating compromises
17. the theory that a state has the right to declare a federal law unconstitutional
18. a series of laws passed in the United States to settle disputes over slavery between free and slave states
19. A war in the United States from 1861 to 1865 between the Union and the Confederacy, fought over the issue of slavery and states' rights.
20. an escaped slave, abolitionist, and reformer who became a powerful voice against slavery

1. a secret network of abolitionists, both Black and white, who helped enslaved people escape to freedom
3. a conflict between the United States and Mexico from 1846 to 1848
4. a series of laws that required the return of escaped slaves
5. a period of violent conflict between pro-slavery and anti-slavery settlers in the Kansas Territory
6. the idea that the government's authority comes from its people
7. 1857 Supreme Court ruling that denied citizenship to Black people
9. a radical abolitionist who believed in using violence to end slavery
10. the act of being freed from another's control or authority
12. the formal act of a state withdrawing from a larger political union
15. the belief that the Southern economy and political power were so dependent on cotton
16. admitted Missouri as a slave state and Maine as a free state