Question: who did we buy the gadsden purchase from
Answer: The Gadsden Purchase ( known in Mexico as Spanish : Venta de La Mesilla , `` Sale of La Mesilla '' ) is a 29,670 - square - mile ( 76,800 km ) region of present - day southern Arizona and southwestern New Mexico that the United States purchased via a treaty signed on December 30 , 1853 , by James Gadsden , U.