<P> President James Monroe was authorized on March 3 , 1821 , to take possession of East Florida and West Florida for the United States and provide for initial governance . Andrew Jackson served as the federal military commissioner with the powers of governor of the newly - acquired territory , from March 10 through December of 1821 . On March 30 , 1822 , the United States merged East Florida and part of what formerly constituted West Florida into the Florida Territory . William Pope Duval became the first official governor of the Florida Territory and soon afterward the capital was established at Tallahassee , but only after removing a Seminole tribe from the land . </P>
<P> President James Monroe was authorized on March 3 , 1821 , to take possession of East Florida and West Florida for the United States and provide for initial governance . Andrew Jackson served as the federal military commissioner with the powers of governor of the newly - acquired territory , from March 10 through December of 1821 . On March 30 , 1822 , the United States merged East Florida and part of what formerly constituted West Florida into the Florida Territory . William Pope Duval became the first official governor of the Florida Territory and soon afterward the capital was established at Tallahassee , but only after removing a Seminole tribe from the land . </P>
when did florida become a territory of the united states
when did florida become a territory of the united states
March 30 , 1822
March 30 , 1822