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Period: to
Territorial Acquistions During the 1800s
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Louisiana Purchase
Under President Thomas Jefferson, Congress purchased the Louisiana Territory from the French. The amount of land would total about 824,000 square miles. -
Purchase of Florida
Florida was ratified in February 1821. It was purchased for five million U.S. dollars, and was a slave state. The exact date of the purchase is unknown. The amount of land was 72,101 square miles. -
Annexation of Texas
Texas was annexed by the U.S. The U.S. gained about 289,166 square miles. The annexation of Texas set off the Mexican-American War. -
The Oregon Territory
The treaty of Oregon was signed, which marked the beggining of the great migration to Oregon. With this treaty, the U.S. gained about 286,541 square miles. -
Mexican Session
After the defeat of the Mexicans, the U.S. and Mexico signed the treaty of Guadalupe Hidalgo, which signed over about 529,189 square miles of land to the U.S. That land included present-day whole or parts of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. It cost 15 million dollars along with assumed claims. -
Gadsden Purchase
The Gadsden Purchase gave the U.S. about 29,670 square miles and the land cost 10 million dollars. The U.S. wanted this land for building the railroad that would cover the broad of the U.S.