http://agathe.gr/democracy/state_religion.html
State Religion: The Archon Basileus There was no attempt in Classical Athens to separate church and state. Altars and shrines were intermingled with the public areas and buildings of the city. A single ... Aristotle describes his varied duties as follows: The basileus is first responsible for the Mysteries, in conjunction with the overseers elected by the people ... also for the Dionysia at the Lenaion, which involves a procession and contest. . . . ... There were four inner columns evenly spaced within the length of the building; these, too, were Doric. ... The philosopher was tried for impiety, for importing new gods into the city, and for corrupting the youth of Athens.