sentences:  His father, Tantalus, was the founder of the House of Atreus through Pelops's son of that name.He was venerated at Olympia, where his cult developed into the founding myth of the Olympic Games, the most important expression of unity, not only for the people of Peloponnesus, but for all Hellenes.At the sanctuary at Olympia, chthonic night-time libations were offered each time to "dark-faced" Pelops in his sacrificial pit ("bothros") before they were offered in the following daylight to the sky-god Zeus (Burkert 1983