Question: What is the name of the island originating in Celtic mythology believed to lie somewhere in the Atlantic Ocean west of Ireland?
Sentence (from "Fortunate Isles"): The Fortunate Isles or Isles of the Blessed (Greek: μακάρων νῆσοι , "makárôn nêsoi") were semi-legendary islands in the Atlantic Ocean, variously treated as a simple geographical location and as a winterless earthly paradise inhabited by the heroes of Greek mythology.
Relevant evidence: No