'The Nag Hammadi Library supported the popular theory that Christianity stemmed from the ancient mystery school traditions of the Mediterranean, which featured “dying and resurrecting godmen.” In Egypt they worshipped Horus; in Greece, Dionysus; in Syria, Adonis; in Asia Minor, Attis; in Persia (and later Rome), Mithras; and in Israel, Jesus. The similarities among these hierophants were uncanny. Several of them, according to the legends, were born around the winter solstice to a virgin in humble surroundings with a star in the Eastern sky. Some grew up to be spiritual masters with 12 disciples (Horus, Mithras, Jesus), performing miracles, giving baptisms and communions. They all died (Dionysus dismembered by Titans, Attis and Adonis eaten by wild boars, and Horus, Mithras and Jesus crucified) before experiencing a miraculous resurrection.'
Read more- Gnosis: The Not-So-Secret History of Jesus