This is the oldest known map of Ireland. It dates back to 140AD and was created by Greek astronomer and cartographer Claudius Ptolemy
He called Ireland “Iouerníā,” which is thought to mean “abundant land” and from which derive the Irish names Ériu and Éire.
The ancient Irish settlement Eblana on the map is believed to be the same site as modern day Dublin.
The maps where created from the sea as Greek and Roman sailors navigated around Ireland. As Ireland remained one of the Few countries in Europe which Rome was unable to capture, the sailors dared not enter this Celtic land for fear of its Wild people.