USA HISTORY

Detailed explanation-1: -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.

Detailed explanation-2: -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 on December 30, 1853.

Detailed explanation-3: -The U.S. Minister to Mexico, James Gadsden negotiated with Mexican President Santa Anna to purchase 29, 670 square miles of Mexican border land for $10 million. Congress approved the funds for the land purchase in 1884. Mexico needed the money to fund the quelling of ongoing rebellion.

Detailed explanation-4: -By its terms, Mexico ceded 55 percent of its territory, including the present-day states California, Nevada, Utah, New Mexico, most of Arizona and Colorado, and parts of Oklahoma, Kansas, and Wyoming.