Florida
Florida had become a burden to Spain, which could not afford to send settlers or garrisons. Madrid therefore decided to cede the territory to the United States through the Adams–Onís Treaty, which took effect in 1821. 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, on behalf of the U.S. federal government, served as a military commissioner with the powers of governor of the newly acquired territory for a brief period. On March 30, 1822, the U.S. Congress merged East Florida and part of West Florida into the Florida Territory.
By the early 1800s, Indian removal was a significant issue throughout the southeastern U.S. and also in Florida. In 1830, the U.S. Congress passed the Indian Removal Act and as settlement increased, pressure grew on the U.S. government to remove the Indians from Florida. Seminoles offered sanctuary to blacks, and these became known as the Black Seminoles, and clashes between whites and Indians grew with the influx of new settlers. In 1832, the Treaty of Payne's Landing promised to the Seminoles lands west of the Mississippi River if they agreed to leave Florida. Many Seminole left at this time.
Legislative Council of the Territory of Florida
One of the requirements for a United States territory to become a state of the Union is that its constitution be approved by the United States Congress. In order to fulfill that requirement, an Act was passed by the Florida Territorial Council in 1838, 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. The delegates were to draft a constitution and bill of rights for the Territory of Florida. The Constitutional Convention convened on December 3, 1838, with Robert R. Reid presiding as president and Joshua Knowles secretary. The work of the Convention was carried out by eighteen committees, whose members were familiar with that particular area of government. The process was a relatively simple one, since they used the constitutions of several other Southern states as models. Only on the subject of banking did much debate take place. The Convention adjourned "sine die" on January 11, 1839.