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.
Port Charlotte, Florida
In 1819, Florida was ceded by the Spanish and became a U.S. territory, and in 1845 Florida became the 27th state. For the first 100 years of statehood, the area around Port Charlotte was mostly undeveloped. Maps of the area at the turn of the 20th century show that most of the roads and railroads leading into southwest Florida had bypassed the Port Charlotte area. Aside from some cattle ranches and small farming, the area was mostly uninhabited. This would change when the post-World War II boom opened people's eyes to the possibility of developing land in Florida.