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An area in extreme southern New Mexico and Arizona south of the Gila River. It was purchased by the United States from Mexico in 1853 to ensure territorial rights for a practicable southern railroad route to the Pacific Coast.
(Placename) an area of about 77 000 sq km (30 000 sq miles) in present-day Arizona and New Mexico, bought by the US from Mexico for 10 million dollars in 1853. The purchase was negotiated by James Gadsden (1788–1858), US diplomat
a tract of 45,535 sq. mi. (117,935 sq. km), now contained in New Mexico and Arizona, purchased for $10,000,000 from Mexico in 1853, the treaty being negotiated by James Gadsden.
1853. Territory acquired from Mexico permitting easy rail connections to be built between Texas and California.