christianity flourished and gradually supplanted the Greco-Roman gods that had once defined Roman religion and culture. This religious shift dramatically affected the art that was created across the empire. ... In this sense, art of the Byzantine Empire continued some of the traditions of Roman art.
Well, it was something that the Tigris and Euphrates River dumped to, and was also called that because it was shaped like a crescent. it was I think egyptians used.
