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Louisiana Purchase
President Jefferson bought Louisiana from French for $15,000,000 it doubled the size of America -
Britrsh Cession
Under Monroe’s first term as president, Britain and the U.S. signed the Treaty of 1818, which established the boundary between U.S. and Canadian territories at the 49th parallel. -
Adams and Onis Treaty
The treaty was named for John Quincy Adams of the United States and Louis de Onís of Spain and renounced any claim of the United States to Texas. It fixed the western boundary of the Louisiana Purchase as beginning at the mouth of the Sabine River and running along its south and west bank to the thirty-second parallel and thence directly north to the Río Rojo (Red River). -
Texas Annexation
President Tyler made a treaty for Spainsh. -
Oregon Territory
The Oregon Treaty is a treaty between the United Kingdom and the United States that was signed on June 15, 1846, in Washington, D.C. The treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to the Oregon Country, which had been jointly occupied by both Britain and the U.S. since the Treaty of 1818. -
Mexican Cession
Area of the present-day United States that Mexico agreed to give up as part of the Treaty of Guadalupe Hidalgo, which ended the Mexican-American War. This territory included all of the present-day states of California, Nevada, and Utah and also parts of Arizona, Colorado, New Mexico, Utah, and Wyoming. -
Gadsden Purchase
The Gadsden Purchase, or Treaty, was an agreement between the United States and Mexico, finalized in 1854, in which the United States agreed to pay Mexico $10 million for a 29,670 square mile portion of Mexico that later became part of Arizona and New Mexico.
