Festivals honoring Dionysus

The Cult of Dionysus is strongly associated with satyrs, centaurs, and sileni, and its characteristic symbols are the bull, the serpent, tigers/leopards, the ivy, and the wine. The Dionysia and Lenaia festivals in Athens were dedicated to Dionysus, as well as the Phallic processions. Initiates worshipped him in the Dionysian Mysteries, which were comparable to and linked with the Orphic Mysteries, and may have influenced Gnosticism. Orpheus was said to have invented the Mysteries of Dionysus.

The Cult of Dionysus traces back to at least Mycenaean Greece, since his name is found on Mycenean Linear B tablets as ...
Wikipedia