The settlement of the Seminole Indians in Florida has been entirely within the historical period. They were renegade Creeks (Muskokis) from Georgia, who invaded Florida following the raids made by the English under Governor Moore, of South Carolina, beginning in 1702. Moore drove the Timuquanas who inhabited the northern part of Florida (extending far southward) to the protection of the forts at St. Augustine.
"Notes on the Origin of the Seminole Indians of Florida,"
Florida Historical Quarterly: Vol. 6
, Article 4.
Available at: https://stars.library.ucf.edu/fhq/vol6/iss1/4