| A | B |
| Louisiana Purchase | US purchased land from France for $15 million stretching west from NO to the border of Idaho and north to Canada |
| Benjamin Banneker | writer, inventor, scientist and 1st African American to work for federal gov't |
| Pierre L'Enfant | french architect who designed the plan for the District of Columbia |
| Thomas Jefferson | 3rd President who bought Louisiana territory from France |
| Napoleon Bonaparte | ruler of France who sold Louisiana Territory to the US |
| Meriwether Lewis | President Jefferson assistant who led the expedition to explore Louisiana |
| William Clark | Lewis' friend who helped lead the expedition to explore Louisiana |
| York | an enslaved African American who assisted Lewis & Clark |
| Sacajawea | Shoshone guide & translator for L&C expedition |
| District of Columbia | land the US capital is situated on |
| Missouri River | L&C moved slowly west along this |
| Snake River | L&C followed this to the Columbia River |
| Columbia River | led L&C to the Pacific Ocean |