Eleusinian Mysteries

A votive plaque known as the Ninnion Tablet depicting elements of the Eleusinian Mysteries, discovered in the sanctuary at Eleusis (mid-4th century BC)

The Eleusinian Mysteries (Greek: Ἐλευσίνια Μυστήρια, romanized: Eleusínia Mystḗria) were initiations held every year for the cult of Demeter and Persephone based at the Panhellenic Sanctuary of Eleusis in ancient Greece. They are considered the "most famous of the secret religious rites of ancient Greece". Their basis was a Bronze Age agrarian cult, and there is some evidence that they were derived from the religious practices of the Mycenean period. The Mysteries represented the myth of the abduction of Persephone from her mother Demeter by the king of the underworld Hades, in a cycle with three phases: the descent (loss), the search, and the ascent, with the main theme being the ascent (ἄνοδος) of Persephone and the reunion with her mother. It was a major festival during the Hellenic era, and later spread to Rome.