| A | B |
| Fort Sumter | First shots fired in the Civil War |
| Bleeding Kansas | Term refers to the violence that ocurred over whether this territory should be slave or free. |
| Fugitive Slave Act | This law angered Northerners because it required them to return runaway slaves. |
| Compromise of 1850 | California became a state after This plan of Henry Clay passed. |
| Harriet Beecher Stowe | Author of Uncle Tom's Cabin |
| John Brown | Radical abolitionist who led a raid on Harper's Ferry to free slaves by force. |
| Free-Soil Party | A political party that was dedicated to the abolition of slavery. |
| Kansas-Nebraska Act | A bill that repealed the Missouri Compromise by allowing voters in territories to choose whether or not to allow slavery. |
| Dred Scott v. Sanford | Court case in which the Supreme Court ruled that African Americans were not citizens and that Congress could not ban slavery in any territory. |
| Republican Party | This party was opposed to the spread of slavery and nominated Abraham Lincoln as their presidential candidate in 1860. |
| Stephen Douglas | Senator who pushed for Kansas-Nebraska Act and popular sovereignty |
| Secede | To break away or withdraw from the Union. |