The Eleusinian Mysteries were initiation ceremonies held every year for the cult of Demeter and Persephone based at Eleusis in ancient Greece. Of all the mysteries celebrated in ancient times, these were held to be the ones of greatest importance. It is acknowledged that their basis was an old agrarian cult which probably goes back to the Mycenean period (c.1600-1100 BC) and it is believed that the cult of Demeter was established in 1500 BC. Read more