| A | B | 
| Missouri Compromise | In 1820 this act banned slavery north of the 36'30' line of latitude | 
| Harriet Beecher Stowe | author of Uncle Tom's Cabin | 
| Kansas Nebraska Act | allwed the territories to decide if they would be slave or free | 
| Dred Scott | Supreme Court case that ruled that slaves are not entitled to U.S. citizenship and slavery cannot be banned in U.S. territories | 
| Stephen Douglas | U.S. Senator from Illinois who defeated Abe Lincoln | 
| Nat Turner | led 60-80 slaves in a rebellion | 
| John Brown | abolitionist who led a raid at Harper's Ferry (West) Virginia in an effort to give slaves weapons | 
| Frederick Douglas | runaway slave who bought his freedom and became an abolitionist | 
| popular sovereignty | the idea that people living in a territory had the right to decide by voting if slavery would be allowed there | 
| abolitionist | a person who strongly favors doing away with slavery | 
| Underground Railroad | a system that helped slaves escape to freedom in the north |