Dictionary.net

• A legendary island supposed to have existed to the southwest of the Canary Islands and to have been discovered by the Irish Monk, St. Brandan, and seventy-five brother monks in the sixth century, after seven years spent in the search for the land of saints. This legend is traceable as far back as the eleventh century'. Each of the various early geographers gives it a different location. The legend had some influence upon the discovery of America.

1894 - Dictionary of United States history
By John Franklin Jameson