United States territorial acquisitions
West Florida was declared to be a U.S. possession in 1810 by President James Madison after the territory had declared its independence from Spain. Madison ordered the U.S. Army to take control. Six weeks later, the army entered and occupied the capital, St. Francisville, putting an end to the republic after 74 days of independence. Spain did not relinquish its claim to sovereignty (see West Florida Controversy) until ratification of the Adams–Onís Treaty. General Andrew Jackson personally accepted the delivery of West Florida from its Spanish governor on July 17, 1821.
Florida Constitutional Convention of 1838
Florida Constitutional Convention of 1838 was convened on December 3, 1838 to fulfill the requirement for a United States territory being admitted to the union as a state. An act was passed by the Florida Territorial Council in 1838, and approved by Governor Richard Keith Call, calling for the election of delegates in October 1838 to a convention to be held at St. Joseph, Florida.