Egypt’s earliest religious hieroglyphic inscriptions cover the walls of Pharaoh Unis’ burial room in his 62-foot-high pyramid at Saqqara. Dated to about 2323 B.C.E., the inscriptions read in part, “O King Unis, you have not all departed dead. You have departed living! For you sit upon the throne of Osiris [god of the dead] with your scepter in your hand that you might give command to the living.”