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Period: to
Westward Expantion
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Louisiana Purchase
Jefferson bought if from French and it doubled the size of the US. -
British Cession
Gained land from Bristish -
Adams-Onis Treaty
Spain gave west florida to the US. -
Texas Annexation
got it during the Mexican-American war -
Oregon Territory
Bristish gave US territory south of the 49th parellel -
Mexican Cession
mexico ceded land to the United States -
Gadsden Purchase
United States paid Mexico 10 million dollars