The historical origins of the Ancient Olympic Games are unknown, but several legends and myths have survived. One of these involved Pelops, king of Olympia and eponymous hero of the Peloponnesus, to whom offerings were made during the games. The Christian Clement of Alexandria asserted, "[The] Olympian games are nothing else than the funeral sacrifices of Pelops."[2] That myth tells of how Pelops' overcame the King and won the hand of his daughter Hippodamia with the help of Poseidon, his old lover, a myth linked to the later fall of the house of Atreus and the sufferings of Oedipus.
Another myth tells of the hero Herakles, or Heracles, who won a race at Olympia and then decreed that the race should be re-enacted every four years, while another claims that Zeus had instated the festival after his defeat of the Titan Cronus. Yet another tells of King Iphitos of Elis, who consulted the Pythia Oracle at Delphi – to try and save his people from war in the 9th century BC. The prophetess advised him to organize games in honour of the gods. The Spartan adversary of Iphitos then decided to stop fighting during these games, which were called Olympic, after the sanctuary of Olympia where they were held. Had they been named after Mount Olympus, the mountain on which the Greek gods were said to live, they would have been called Olympian games rather than Olympic. The favorite story is that Heracles celebrated cleaning the Augean Stables by building Olympia with help from Athena.
Whatever the origin, the games were held to be one of the two central rituals in Ancient Greece, the other being the Eleusinian Mysteries.[3]
Another possibility for the actual origin of the Games is that they essentially 'evolved' from Funeral Games.