With such a formulation of the problem, my essay on ancient Greek religion, without losing its significance as a self-sufficient exposition of this religion for the 5th and 4th centuries. before R.X., will at the same time become the first cross-section through the entire history of ancient religion in general. For the second, we will step over three centuries: they gave Hellenic culture victory to the entire Middle Eastern world, and this, in turn, led to the mutual penetration of Greek and Eastern religions, to the Hellenization of Eastern and orientalization of Greek; the result of this double process was that religion of Hellenism, the presentation of which is devoted to the present essay. This cross section will be made, according to the said, for the 1st century. Before R.X., on the eve of the birth of Christianity itself.