| A | B |
|---|
| 1607 | Colonization |
| 1776 | Independence |
| 1787 | Constitution |
| 1803 | Manifest Destiny/Westward Expansion |
| 1861-65 | Civil War |
| Exploration | Era/age when Europe first realized the New World |
| Colonization | Era in which Europe made permanent settlements in the New World |
| Constitution | Era in which the US began a new government |
| Manifest Destiny | era where Americans began to move west |
| Louisiana Purchase | 1803 land deal that doubled the size of the US |
| era | a specific and significant period of history |
| Civil War | war between the separate and united states of America |
