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Policy and History

History of U.S. – Iran Policy

The first formal act of diplomatic engagement and recognition between the United States and the Kingdom of Persia (Iran), both long-established states, occurred on June 28, 1850, when U.S. Secretary of State John Middleton Clayton a uthorized the American Minister Resident at Constantinople, George P. Marsh, to negotiate a treaty of friendship and commerce with the Persian Chargé d’Affaires there.