The belief that Americans had a God-given destiny to expand from the Atlantic to the Pacific Ocean.
Manifest Destiny
The U.S. president during the Mexican-American War.
James K. Polk.
This doubled the size of the United States, and gave Americans control of the Mississippi River.
The Louisiana Purchase.
A person who is one of the first to explore or settle an area.
Pioneer
An area of land that belongs to a country or a state.
Territory
The Treaty that ended the war with Mexico.
The Treaty of Guadalupe Hidalgo.
These two men explored the Mississippi River during Thomas Jefferson's presidency.
Lewis and Clark.
This area was acquired as part of a treaty with Great Britain.
The Oregon Territory
These people were discriminated against, even though they were important workers in California.
Chinese immigrants.
A piece of land that two or more groups or countries argue belongs to them.
Disputed area
This way to communicate was an important part of the connecting the country as it expanded.
The telegraph.
This writer wrote the "Tell-Tale Heart."
Edgar Allen Poe
This area was gained as a result of a war with Mexico.
The Mexican Cession
This was the route taken by Brigham Young and his followers from Illinois to what is now Utah.
The Mormon Trail.
This increase was a major reason for people to leave northern cities to go west.
Population growth
By opening ports on the West Coast, American companies were closer to markets on this continent:
Asia.
This writer refused to pay his poll tax to protest the Mexican War.
Henry David Thoreau.
The name of this territory, acquired from Spain:
Florida.
This began in 1848, with the discovery of gold at Sutter's Mill.
The Gold Rush.
Acquire
New England businesses specialized in this:
Manufacturing
These painters made inspiring pictures about the American West.
The Hudson River School.
This part of what is now New Mexico and Arizona was the last part of the country added in the contiguous United States.
The Gadsden Purchase.
This invention was vital to helping settlers to quickly colonize the West.
To hand over land to another country or group, usually through a treaty.
Cede, or cession