| A | B |
| Maine | admitted as a free state |
| Missouri | Admitted as a slave state |
| 36-30 | line of latitude that divided slave and free states in future new territory |
| Southerners argued | states rights! States should be able to decide if they have slavery |
| Northerners argued | The federal congress should have the power to admit states and decide the issue of slavery |
| Talmadge amendment | Missouri would be free, upset southerners |
| Secede | To break off from the union |
| North | had industry and free labor |
| South | had slavery and agriculture (farming) |
| South Carolina | state that threatened to leave the union |
| tariff | Congress passed a tax on imported goods |
| Andrew Jackson | President that threatens to use the military to put down secession |
| secede | to break off from the union |
| nullification | when a state cancels a federal law |
| John C. Calhoun | Vice President that believed in states' rights |