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Period: to
Westward Expansion
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Lousiana Purchase
TheUnited States acquired France's territory. Including the current day states of Arkansas, Missouri, Iowa, Oklahoma, Kansas, and Nebraska; parts of Minnesota that were west of the Mississippi River; parts of North Dakota; some of South Dakota; northeastern New Mexico; northern Texas; parts of Montana, Wyoming, and Colorado east of the Continental Divide; Louisiana; and small portions of land in Canada. -
British Cession
This was known as the Treaty of 1818. The United States gained parts of land in the Northwestern parts of Minnisota and the Northeasten parts of North Dakota. -
Adams-Onis
This was a treaty (also known as The Transcontinental Treaty or the Purchase of Florida, Florida Treaty,or the Treaty of 1819) that gave West Florida to the U.S. and set out a boundary between the U.S. and Mexico. -
Texas Annexation
The United States annexed Texas and parts of New Mexico, Oklahoma, Colorado, and Kansas. -
Oregon Territory
The United States got an area that included modern-day states of Oregon, Washington, and Idaho, also parts of Wyoming and Montana. -
Mexican Cession
The United States got California, Nevada, Utah, and parts of Utah, Arizona, and Colorado. -
Gadsden Purchase
The United States signed a treaty receiving southern Arizona and southwestern New Mexico.
