| A | B |
| Thomas Jefferson | President |
| John Marshall | Chief Justice of Supreme Court |
| Lewis and Clark | Exploers |
| Expedition | Long journey of exploration |
| Sacajawea | Indian woman |
| Continental Divide | Mt. range that's seperates river systems |
| Zebulon Pike | Explored the uper Mississippi River |
| Thomas Jefferson becomes President | 1801 |
| France and Britain go to war | 1803 |
| Lewis and Clark exploration | 1804 |
| Laissez Faire | Let alone |
| Pinckney Treaty | Allowed Americans to ship goods down the Mississippi |
| Louisiana | Purchased for 15 million |
| Jackson defeats British at New Orleans | 1815 |
| Embargo Act bans trading with foreign nations | 1807 |