| A | B |
| Pacific Railway Act | a law made in 1862 granting permission to the Union Pacific and Central Pacific Railroads to build the transcontinental railroad |
| Homestead Act | a law made in 1862 encouraging westward migration by providing settlers 160 acres for small filing fee as long as the land is improved upon (grow crops, build a house, etc.) in 5 years |
| Dawes Severalty Act | a law made in 1887 breaking up tribal lands in effort to assimilate Native Americans into American culture; forced assimilation |
| Carlisle Indian School | a boarding school in Pennsylvania specifically for Native Americans to be schooled in the "white ways" |
| Manifest Destiny | the idea that the United States was destined to obtain of the land from the Atlantic to the Pacific Oceans |
| Northwest Ordinance | an act of Congress in 1787 to develop a system for admitting new states to the union ("Yo Mama's gonna have a baby!") |
| Louisiana Purchase | President Jefferson's land purchase from France in 1803 |
| Adams-Onis Treaty | the 1819 treaty between the United States and Spain that ceded Florida to the United States |
| Texas Annexation | the addition of Texas to the Union as a slave state in 1845 after the Americans living in Texas declared their independence from Mexico ("Remember the Alamo") |
| Oregon Treaty | a treaty resolving the boundary dispute with Britain giving the United States the Oregon Territory south of the 49th parallel |
| Mexican Cession | the Treaty of Guadalupe-Hidalgo ended the Mexican-American War in 1848 giving the United States California, Nevada, Arizona, Utah, and part of New Mexico, |
| Gadsden Purchase | this land purchased from Mexico for $10 million finished off Manifest Destiny |