List of colonial governors of Florida
The colonial governors of Florida governed Florida during its colonial period (before 1821). The first European known to arrive there was Juan Ponce de León in 1513, but the governorship did not begin until 1565, when Pedro Menéndez de Avilés founded St. Augustine and was declared Governor and "Adelantado" of Florida. This district was subordinated to the Viceroyalty of New Spain. In 1763, following the transfer of Florida to Britain, the territory was divided into West Florida and East Florida, with separate governors. This division was maintained when Spain resumed control of Florida in 1783, and continued as provincial divisions with the Spanish Constitution of 1812. The Spanish transferred control of Florida to the United States in 1821, and the organized, incorporated Florida Territory was established on March 30, 1822. This became the modern State of Florida on March 3, 1845.
History of Mississippi
Americans had continuing land disputes with the Spanish, even after taking control of much of this territory through the Louisiana Purchase (1803) from France. In 1810 the European-American settlers in parts of West Florida rebelled and declared their freedom from Spain. President James Madison declared that the region between the Mississippi and Perdido rivers, which included most of West Florida, had already become part of the United States under the terms of the Louisiana Purchase. The section of West Florida between the Pearl and Perdido rivers, known as the District of Mobile, was annexed to Mississippi Territory in 1812; Americans from the United States occupied Kiln, Mississippi, in 1813.