Which treaty settled relations with Spain and ceded Florida to the United States?

• A. Louisiana Purchase
• B. Gadsden Purchase
• C. Adams Onis Treaty
• D. Treaty of Paris

Answer: (C)

Adams-Onís Treaty, signed in 1819, is the agreement that settled relations with Spain and handed Florida to the United States. Known also as the Transcontinental Treaty, it resolved boundary disputes by defining the U.S.–Spanish border from the Louisiana Purchase area to the Pacific and, in exchange, Spain ceded Florida to the United States. The deal also had the U.S. relinquish claims to Texas and assume certain debts of American citizens against Spain. This treaty helped clarify who controlled what in North America at the time and set the stage for the country’s western expansion. The other options involve different lands or countries: one relates to France, another to Mexico, and the last to Britain’s recognition after the American Revolution.