century, the Orontes, the Nile and the Halys, to use the words of Juvenal, flowed into the Tiber, to the great indignation of the old Romans. Finally, a hundred years later, an influx of Egyptian, Semitic and Persian beliefs and conceptions took place that threatened to submerge all that the Greek and Roman genius had laboriously built up. What called forth and permitted this spiritual commotion, of which the triumph of Christianity was the outcome? Why was the influence of the Orient strongest in the religious field? These questions claim our attention. Like all great phenomena of history, this particular one was determined by a number of influences that concurred in producing it. In the mass of half-known particulars that brought it about, certain factors or leading causes, of which every one has in turn been considered the most important, may be distinguished.
If we yielded to the tendency of many excellent minds of to-day and regarded history as the resultant of economic and social forces, it would be easy to show their influence in that great religious movement. The industrial and commercial preponderance of the Orient was manifest, for there were situated the principal centers of production and export. The ever increasing traffic with the Levant induced merchants to establish themselves in Italy, in Gaul, in the Danubian countries, in Africa and in Spain; in some cities they formed real colonies. The Syrian emigrants were especially numerous. Compliant, quick and diligent, they went wherever they expected profit, and their colonies, scattered as far as the north of Gaul, were centers for the religious propaganda of paganism just as the Jewish communities of the Diaspora were for Christian
preaching. Italy not only bought her grain from Egypt, she imported men also; she ordered slaves from Phrygia, Cappadocia, Syria and Alexandria to cultivate her depopulated fields and perform the domestic duties in her palaces. Who can tell what influence chambermaids from Antioch or Memphis gained over the minds of their mistresses? At the same time the necessities of war removed officers and men from the Euphrates to the Rhine or to the outskirts of the Sahara, and everywhere they remained faithful to the gods of their far-away country. The requirements of the government transferred functionaries and their clerks, the latter frequently of servile birth, into the most distant provinces. Finally, the ease of communication, due to the good roads, increased the frequency and extent of travel.
Thus the exchange of products, men and ideas necessarily increased, and it might be maintained that theocracy was a necessary consequence of the mingling of the races, that the gods of the Orient followed the great commercial and social currents, and that their establishment in the Occident was a natural result of the movement that drew the excess population of the Asiatic cities and rural districts into the less thickly inhabited countries.
These reflections, which could be developed at some length, surely show the way in which the Oriental religions spread. It is certain that the merchants acted as missionaries in the seaports and places of commerce, the soldiers on the frontiers and in the capital, the slaves in the city homes,[[4]] in the rural districts and in public affairs. But while this acquaints us with the means and the agents of the diffusion of those religions,
it tells us nothing of the reasons for their adoption by the Romans. We perceive the how, but not the why, of their sudden expansion. Especially imperfect is our understanding of the reasons for the difference between the Orient and the Occident pointed out above.
An example will make my meaning clear. A Celtic divinity, Epona,[[5]] was held in particular honor as the protectress of horses, as we all know. The Gallic horsemen worshiped her wherever they were cantoned; her monuments have been found scattered from Scotland to Transylvania. And yet, although this goddess enjoyed the same conditions as, for instance Jupiter Dolichenus whom the cohorts of Commagene introduced into Europe, it does not appear that she ever received the homage of many strangers; it does not appear, above all, that druidism ever assumed the shape of "mysteries of Epona" into which Greeks and Romans would have asked to be initiated. It was too deficient in the intrinsic strength of the Oriental religions, to make proselytes.
Other historians and thinkers of to-day prefer to apply the laws of natural science to religious phenomena; and the theories about the variation of species find an unforeseen application here. It is maintained that the immigration of Orientals, of Syrians in particular, was considerable enough to provoke an alteration and rapid deterioration in the robust Italic and Celtic races. In addition, a social status contrary to nature, and a bad political régime effected the destruction of the strongest, the extermination of the best and the ascendancy of the worst elements of the population. This multitude, corrupted by deleterious cross-breeding and weakened by bad selection, became unable to
oppose the invasion of the Asiatic chimeras and aberrations. A lowering of the intellectual level and the disappearance of the critical spirit accompanied the decline of morals and the weakening of character. In the evolution of beliefs the triumph of the Orient denoted a regression toward barbarism, a return to the remote origins of faith and to the worship of natural forces. This is a brief outline of explanations recently proposed and received with some favor.[[6]]
It cannot be denied that souls and morals appear to have become coarser during the Roman decline. Society as a whole was deplorably lacking in imagination, intellect and taste. It seemed afflicted with a kind of cerebral anemia and incurable sterility. The impaired reason accepted the coarsest superstitions, the most extreme asceticism and most extravagant theurgy. It resembled an organism incapable of defending itself against contagion. All this is partly true; but the theories summarized proceed from an incorrect conception of things; in reality they are based on the illusion that Asia, under the empire, was inferior to Europe. While the triumph of the Oriental religions sometimes assumed the appearance of an awakening of savagery, these religions in reality represented a more advanced type in the evolution of religious forms than the ancient national devotions. They were less primitive, less simple, and, if I may use the expression, provided with more organs than the old Greco-Roman idolatry. We have indicated this on previous occasions, and hope to bring it out with perfect clearness in the course of these studies.