Persian moon god bronze plaque 4thc BC. Horned Gods date as far back as the Ancient Sumerians and there were many! In ancient Europe horned gods were also quite common, aka "Cernunnos" It was until the middle ages that the concept of Satan took on the image of the horned Demon. It was their way to squash the pagan belief systems by deeming their religious beliefs as evil.
(National Geographic News) Chest of Tutankhamun. In the shape of a cartouche, this gilded wood chest from King Tutankhamun's tomb is inlaid with ivory, ebony, and various colored pastes. A cartouche is an oval figure enclosing a sovereign's name.