Mayda
Mayda (variously known as Maida, Mayd, Mayde, Brazir, Mam, Asmaida, Asmayda, Bentusle, Las Maidas Bolunda, and Vlaanderen) is a phantom island in the North Atlantic Ocean that appeared on maps from the 14th century until the early 20th century. Typically depicted as crescent-shaped and positioned west of Brittany or southwest of Ireland, approximately at 46° to 48° N latitude, Mayda was among the most persistent of the Atlantic phantom islands.