Egypt

From the beginning of its history--that is, from about 4500 B.C.--we can trace the development of a religion one of whose most prominent elements was a promise of a life after death. It was still a great religion when the Christian doctrine of immortality was enunciated. In the early centuries of the Christian era, it seemed almost possible that the worship of Osiris and Isis might become the religion of the classical world; and the last stand made by civilized paganism against Christianity was in the temple of Isis at Philae in the sixth century after Christ.