The Gadsden Purchase was a treaty signed by James Gadsden, the U.S. Minister to Mexico, and General Antonio de Santa Anna, the president of Mexico on December 30, 1853 in Mexico City. It was an Agreement between the United States and Mexico to give a 29,670 square mile portion of Mexico in exchange for $10 million.
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The great potato famine in Ireland (1845–1849) drove the Irish to the United States in large numbers; they emigrated directly from their homeland to escape poverty and death.
