| A | B |
| Civil War | (1861-65)due to no compromise between the North & South |
| Louisiana Purchase | (1803) Thomas Jefferson bought this land from Napoleon Bonaparte for $15 million |
| Treaty of Guadalupe-Hidalgo | Treaty that gave us most of the mexican states. |
| California Gold Rush | in 1848, 80,000 forty niners showed up to search for gold, leading to chaos and violence. |
| transcontinental Railroad | (1869) a railroad that expanded from the east coast to the west coast. |
| Trail of Tears | (1832-1841) Native Americans were forced to moved to the west |
| Homwstead Act | (1862) a homesteader could claim 160 acres and a title to land if living on it for over five years. |
| Dawes/Severalty Act | (1887) allotted to each head of household 160 acres of reservation land for farming (Native Americans) |