| A | B |
| Panic of 1837 | Depression caused by Andrew Jackson's tariff and banking policies. |
| Amistad Case | court case in which a group of newly captured Africans charged with murder were returned to Africa |
| Seminole Wars | War between Seminole Indians in Florida who resisted being moved west |
| US Mexican War | war fought over the annexation of Texas that the U.S. won |
| California Gold Rush | attracted thousands and the 49ers to go west |
| John Quincy Adams | 6th president and ardent abolitionist |
| James K. Polk | president during the U.S. Mexican War |
| Henry David Thoreau | wrote “Civil Disobedience” |
| Democratic Party | Party of the Common Man |
| Whig Party | created to protest Andrew Jackson |
| Bear Flag Republic | California's name after its revolution in 1846 |
| All Mexico Plan | The idea that the United States should have taken over the entire nation of Mexico |
| Gadsden Purchase | The last of the continent acquired by the United States in 1854 |
| Oregon Territory | Land acquired through treaties with Great Britain |
| Mexican Cession | Land acquired through the Treaty of Guadalupe Hidalgo |
| Texas Annexation | Acquisition of Texas in 1845 which caused the U.S. Mexican War |
| Manifest Destiny | belief that the United States had the right to all the land between the Atlantic and Pacific Oceans |
| Northwest Ordinance | banned slavery in Northwest Territory |
| Missouri Compromise | allowed slavery in Missouri and south of the 36, 30 line |
| Compromise of 1850 | allowed slavery in Texas but not in California |
| Kansas Nebraska Act | allowed Kansas and Nebraska to decide the issue of slavery using popular sovereignty |