5000 BC to 300 AD this is a painting, a relief sculpture. the purpose is history and religious. the images say to us that these were highly skilled artists with keen powers of observation. .All Egyptian reliefs were painted, and less prestigious works in tombs, temples and palaces were just painted on a flat surface. Stone surfaces were prepared by whitewash, or if rough, a layer of coarse mud plaster, with a smoother gesso layer above.