Simplify the following text for a Grade 10 native English-speaking person.
Original: Cuba 's `` special municipality '' is the Isla de la Juventud ( `` Island of Youth '' ) , known until the 1970s as the Isla de Pinos ( `` Isle of Pines '' ) and previously as `` Evangelista '' , `` Isle of Santiago '' and `` Isle of Parrots '' .
Simplified: Cuba 's `` special municipality '' is the Isla de la Juventud ( `` Island of Youth '' ) , known until the 1970s as the Isla de Pinos ( `` Isle of Pines '' ) .