| A | B |
| industry | The South lacked this |
| Free-Soil Party | party that wanted to stop slavery from expanding |
| Wilmot Priviso | bill that tried to stop slavery from expanding to new lands |
| Fugitive Slave Act | required Northerners to help return runaway slaves |
| John Brown | extreme abolitionist who wanted to end slavery |
| "Bleeding Kansas" | Kansas' nickname due to the violence their over slavery. |
| popular sovereignity | people voting on an issue |
| Kansas-Nebraska Act | ended the Missouri Compromise. Slavery would be decided by voting |
| Republican Party | party formed by former Whigs and others against slavery. |
| Dred Scott Case | Supreme Court case that said slaves were property that could not be taken away by the government |
| Harper's Ferry | place where John Brown attacked a federal arsenal |
| platform | a political party's statement of beliefs |
| Abraham Lincoln | Republican presidential candidate in 1860 |
| Stephen Douglas | N. Democratic candidate in 1860 |
| John Breckinridge | S. Democratic candidate in 1860 |
| John Bell | Constitutional Union party candidate in 1860 |
| secede | leave the United States |
| Confederate States of America | country formed by seceding states |
| Jefferson Davis | president of the CSA |
| Crittenden Plan | last chance for peace and compromise in 1861 |