The Greeks called Ireland the "Sacred Isle" and "Ogygia."
"Nor can any one," says Camden, "conceive why they should call it Ogygia, unless, perhaps, from its antiquity; for the Greeks called nothing Ogygia unless what was extremely ancient." We have seen that Ogyges was connected by the Greek legends with a first deluge, and that Ogyges was "a quite mythical personage, lost in the night of ages."
