| A | B |
| Tejano | A Texan of Mexican descent |
| Manifest Destiny | The belief that America should expand its territorial limits |
| abolitionist | A person opposed to slavery and in favor of ending it |
| Fugitive Slave Law | A law that made it easier for slaveholders to get runaway slaves returned to them |
| annex | To add on or attach |
| Republican Party | A political party made up of people who wanted to keep the western territories free of slavery |
| Oregon Trail | The trail blazed by pioneers who moved from Missouri to Oregon Country |
| terrain | Land and landforms, including deserts, mountains, and valleys |
| common man | The "average" American citizen, whose concerns are represented in government |
| temperance | Moderation in drinking alcohol or total abstinence from drinking alcohol |
| discrimination | Action or policies against a minority group |
| certificate of freedom | Paperwork that proved that a slave had been freed or had bought his or her freedom |
| Underground Railroad | A system set up by opponents of slavery to help slaves flee from the South to the North |
| conductor | A person who helped runaway slaves to hide and escape |
| Stephen Austin | led 300 American families to eastern Texas |
| Santa Anna | Mexican dictator who tried to crush the American presence in Texas |
| Sam Houston | cried "Remember the Alamo!" |
| James Polk | expansionist who wanted to take over the Oregon Country, his slogan was "Fifty-four forty or fight" |
| Frederick Douglass | wanted to get rid of slavery |
| Henry Clay | the Great Compromiser |
| Compromise of 1850 | Allowed California to be admitted as a free state, outlawed the slave trade, called for the Fugitive Slave Law |
| Harriet Beecher Stowe | Wrote Uncle Tom's Cabin |
| Kansas-Nebraska Act of 1854 | Said that Kansas and Nebraska could vote on whether to allow slavery or not |
| Dred Scott | He sued for freedom and his case went to the Supreme Court |