11. Mithras are acknowledged by scholars such as David Ulansey who interpret Roman Mithraism as something new. 12. One was a rival religion, called Mithraism , which was seen as a threat to Christianity. 13. The mystery religion of Mithraism was practiced in the Roman Empire between the 1st and 4th century. 14. During this course I learned about Mithraism and other pagan cults in the far flung Roman Empire. 15. The old Roman values had fallen, and Mithraism and Christianity had begun to spread through the populace. 16. Mithraism wasn't exclusive-it was possible and common to follow Mithraism and other cults simultaneously.17. Mithraism wasn't exclusive-it was possible and common to follow Mithraism and other cults simultaneously. 18. For further details, see the summary of the problem in the Encyclopaedia Iranica article on " Mithraism ". 19. There have been different views among scholars as to whether this text is an expression of Mithraism as such. 20. Mithra was the great god of Mithraism which was common in Persia and Roman about two thousand years ago.