| A | B |
|---|
| Oregon Trail | Main wagon trail moving west |
| Manifest Destiny | Belief that the United States had the right to all land between the Atlantic and Pacific oceans |
| forty-niner | Person who went to California during the Gold Rush in 1849 |
| annex | To add on territory |
| Brigham Young | Governor of Utah territory in 1850 |
| Mexican Cession | Mexico gave the United States California and New Mexico for $15 million dollars |
| Gadsden Purchase | United States pays $10 million for a strip of land in present day Arizona and New Mexico |
| Treaty of Guadalupe Hidalgo | 1848 peace treaty signed by Mexico during the Mexican Cession |
