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Louisiana Purchase
828,000,000 square miles of land purchased from frace for less then three cents an acre. -
Period: to
Westward Expansion
From 1803 to 1853 was known as the westward expansion era. -
Florida
Spanish minister Do Luis de Onis and U.S. Secretary of State John Quincy Adams sign the Florida Purchase Treaty, in which Spain agrees to cede the remainder of its old province of Florida to the United States. -
Texas Annexed
The Texas annexation was the 1845 incorporation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state. -
Oregon Country
Britain and the United States did not want to go to war over Oregon territory so they reached a compromise, they would divide the territory at the 49th parallel. -
Mexican Cession
Treaty of Guadalupe-Hidalgo. The treaty recognized Texas as a U.S. state, and ceded a large chunk of land about half the area that belonged to the Mexican republic to the United States for the cost of $15 million. -
Gadsen Purchase
The Gadsden Purchase is a roughly 30,000 square-mile region of present-day southern Arizona and southwestern New Mexico that was acquired by the United States in a treaty signed by American ambassador to Mexico James Gadsden.
