For this reason, what glimpses we do have of the older Greek mysteries have been understood as reflecting certain archaic aspects of common Indo-European religion, with parallels in Indo-Iranian religion. The mystery schools of Greco-Roman antiquity include the Eleusinian Mysteries, the Dionysian Mysteries, and the Orphic Mysteries. Some of the many divinities that the Romans nominally adopted from other cultures also came to be worshipped in Mysteries, for instance, Egyptian Isis, Persian Mithras from the Mithraic Mysteries, Thracian/Phrygian Sabazius, and Phrygian Cybele.