| A | B |
| Missouri Compromise | Allowed Missouri to enter the Union as a slave state |
| Compromise of 1850 | Four compromise that allowed California to enter the Union as a free state |
| Kansas-Nebraska Act | Established the idea of "popular sovereignty" |
| Bleeding Kansas | Resulted from crossing the state lines to influence free/slave status |
| Dred Scott decision | Court case which established slaves as property |
| Emancipation Proclamation | Freed slaves in southern conrolled states |
| Draft riots | Erupted in New York City as a result of unfair draft laws |
| Save the Union | Lincoln's position on the reason for the war |
| Abolitionists | Those who wanted slavery abolished |
| Attrition | The act of wearing the enemy down |
| Scorched earth policy | Union strategy to destroy the enemy's food, shelter, & supplies |
| Defensive war | Confederacy plan to win the war |