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: -In 1853 President Pierce sent Gadsden to Mexico to negotiate a redefinition of the border. The Mexican regime was urgently in need of money and for $10 million sold the required strip of territory south of the Gila River, in what is now southern New Mexico and Arizona.

Detailed explanation-3: -James Gadsden was the Secretary to Mexico and he was instructed by President Pierce to negotiate for land which was needed to place a rail line through the southwest.

Detailed explanation-4: -On December 30, 1853, a treaty was signed where Mexico sold the United States 29, 000 square miles of territory in the area that would eventually become southern Arizona and New Mexico.

Detailed explanation-5: -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.