Shea 1886, pp. 285–286. Shea, John Gilmary (1886). "Ancient Florida". In Winsor, Justin (ed.). Narrative and Critical History of America. Vol. 2. Boston: Houghton, Mifflin and Company.
Scott Kurashige (30 May 2017). "Epilogue: Our Polycultural Past and Future Century". In Salazar-Porzio, Margaret; Fragaszy Troyano, Joan; Safranek, Lauren (eds.). Many Voices, One Nation: Material Culture Reflections on Race and Migration in the United States. Smithsonian Institution. p. 400. ISBN978-1-944466-11-4.
In early 1521, Ponce de León had made a poorly documented, disastrous attempt to plant a colony near Charlotte Harbor, Florida but was quickly repulsed by the native Calusa. After the attack, the expedition returned to Havana, where Ponce soon died from his wounds. See Ponce de Leon Source Records.Douglas T. Peck (Summer 2001). "Lucas Vásquez de Ayllón's Doomed Colony of San Miguel de Gualdape". The Georgia Historical Quarterly. 85 (2): 183–198. JSTOR40584407.
In early 1521, Ponce de León had made a poorly documented, disastrous attempt to plant a colony near Charlotte Harbor, Florida but was quickly repulsed by the native Calusa. After the attack, the expedition returned to Havana, where Ponce soon died from his wounds. See Ponce de Leon Source Records.Douglas T. Peck (Summer 2001). "Lucas Vásquez de Ayllón's Doomed Colony of San Miguel de Gualdape". The Georgia Historical Quarterly. 85 (2): 183–198. JSTOR40584407.