| A | B |
| popular sovereignty | control by the people; voters in a new territory would decide for themselves whether or not to allow slavery in a territory |
| sectionalism | loyalty to a state or section, rather than to the country as a whole |
| civil war | a war between people of the same country |
| Wilmot Proviso | called for a law to ban slavery in any lands won from Mexico |
| Uncle Tom's Cabin | written by Harriet Beecher Stowe; showed the evils of slavery and the injustice of the Fugitive Slave Law |
| Kansas-Nebraska Act | (1854) law that divided the Nebrasak territory into two territories. Provided for the question of slavery in the territories to be decided by popular sovereignty |
| Fugitive Slave Law of 1850 | law that required all citizens to help catch runaway slaves; fined or jailed citizens that let slaves escape |
| Border Ruffians | proslavery bands from Missouri who battled antislavery forces in Kansas |
| Compromise of 1850 | agreement over slavery that admitted California to the U.S. as a free state, allowed popular sovereignty in New Mexico and Utah, banned the slave trade in Washington D.C., and passed a strict fugitive slave law |
| Missouri Compromise | (1820) plan proposed by Henry Clay to keep the number of slave states and free states equal; Missouri entered the Union as a slave state and Maine entered as a free state. |
| Bleeding Kansas | name given to the Kansas Territory by a newspaper because of the violence there over slavery |
| Dred Scott Decision | Supreme Court decision in 1857 that stated that slaves were property, not citizens |
| fugitive | runaway, such as an escaped slave in the 1800s |
| Republican Party | formed in 1854 by Free Soilers, Democrats, and antislavery Whigs; their main goal was to keep slavery out of the western territories |
| arsenal | gun warehouse |
| Free Soil Party | political party founded in 1848 by antislavery Whigs and Democrats; their goal was to keep slavery out of the western territories |
| Confederate States of America | nation formed by the states that seceded from the Union in 1860 and 1861 |
| Fort Sumter | fort in South Carolina that the Confederate soldiers shelled until the Union commander surrendered it; marked the beginning of the Civil War |
| slave codes | laws which limited the rights of slaves and gave slave owners total power over them |
| abolitionist | A person who wanted to end slavery |
| Underground Railroad | A network of escape routes that provided protection and transportation for slaves fleeing north to freedom |