Marathon is closely related to the famous battle of 490 BC, which has been vividly described by Herodotus. The heroes and gods who contributed to this Greek victory were worshiped in the Marathon tetrapolis which consisted of the Marathon, Trikorynthos, Oenoe and Provalinthos settlements. Apollo, Artemis as well as Dionysus were deities who were also worshiped in Marathon. Heracles was considered to be the patron and major hero of Marathon. His sanctuary is located at the Valaria vicinity, while Pan and the Nymphs were worshiped in a multi-chambered cave to the NW of Oenoe. The sanctuaries of the other deities, known from literary sources, have not as yet been located with certainty.