land that belongs to a national government but is not a state
long journey by a group to explore or do battle
open way for travel or transportation
mission and fort that was the site of a siege and battle during the Texas Revolution, resulted in the massacre of all its defenders
period from 1848 to 1856 when thousands of people came to California in order to search for gold.
people who rushed to California in search of gold
to slow or impede progress, an obstacle
extending the nation beyond its existing borders
absorb a group into the culture of a larger population
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