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Gadsden Purchase: On December 30, 1853 James Gadsden, U.S. Minister to Mexico, and General Antonio López de Santa Anna, President of Mexico, signed the Gadsden Purchase in Mexico City. The treaty settled the border dispute about the location of Mexico's border west of El Paso, Texas. The final $10,000,000.00 purchase gave the U.S. approximately 29,000 square miles of land in what is now southern New Mexico and Arizona. |