Settlers poured in from neighboring states, settling especially in the area around the newly founded capital of Tallahassee. A plantation economy flourished there, with cotton and tobacco the chief crops. Settlement expanded southward and displaced the Seminoles, and wars with them seriously impeded Florida's development. A group of Seminole, under Osceola, resisted attempts to move them to the West, but eventually most of them were transported out of the region at the end of the Second Seminole War (1835–42). However, a small band fled to the wilderness of the Everglades and their descendants live on reservations in the Lake Okeechobee area.
Statehood, Civil War, and Reconstruction
Florida was admitted to the Union in 1845 as a slaveholding state. After Abraham Lincoln was elected President in 1860 proslavery sentiment in Florida led the state to secede from the Union in 1861 and join the Confederacy. Florida furnished vital supplies (particularly salt and cattle) to the Confederacy. The most important Civil War engagement fought in Florida was the battle of Olustee (Feb. 20, 1864), a Confederate victory.
After the war Florida was placed under military rule by Congress. A constitution was drafted providing for black suffrage, and the state was readmitted to the Union in 1868. The constitution had been drafted by moderate Republicans, some of whom were from the North, and these same Republicans held most political offices until 1876, when the Democrats were returned to power and African Americans were once again relegated to an inferior position. In 1885 a new constitution replaced the Reconstruction charter of 1868.
Land Booms
In 1881 Florida sold 4,000,000 acres (1,618,800 hectares) of land to real-estate promoters. Northern capitalists such as Henry M. Flagler built railroads and hotels, and Florida began to develop. The drainage of the Everglades, begun in 1906, precipitated one of the state's periodic land booms. Because of environmental degradation due to farming these drained lands, areas are now being restored to their natural state through reflooding. The most famous of Florida's land booms started after World War I and reached its peak in 1925 when land values achieved fantastic heights, only to collapse completely the following year.
From Depression to Postwar Growth
Florida weathered the depression of the 1930s with the help of the federal government, and during World War II prospered from army, navy, and air force installations. After the war the state enjoyed phenomenal growth. Virtually unlimited water resources, as well as the pleasant climate, were important factors in attracting new industries. Manufacturing, particularly industries related to aeronautics, developed at an extraordinary rate.
Relations with Latin America
Close to Cuba, Florida has often been involved in the affairs of that island. During the latter half of the 19th cent., Cubans rebelling against Spain received sanctuary and aid in Florida, and the state enthusiastically supported and profited economically from the Spanish-American War (1898), in which Tampa was the chief U.S. base. Florida's relationship with Cuba has become even closer in the 20th cent. Political refugees from the Cuban revolution of 1958–59 poured into Florida by the thousands, creating acute resettlement problems. In 1980 more than 100,000 Cuban refugees came to the United States, mostly through Florida, after Fidel Castro briefly opened the port of Mariel to a flotilla of privately chartered U.S. ships (see Cuba).