OZeAN, Okeanos or Oceanus surrounds the round disc of the earth, and thus limits and contains the Oikoumene, the inhabited world. He is the source of the rivers and seas and is also sometimes interpreted as the forefather of the gods. The image of the sea or river god thus represents the unity of the Ancient World and so acts as eponymous patron for the Online Journal for Ancient Numismatics, which is intended to encompass all aspects of ancient numismatics.