The following are some further notes on the spread of Christianity:-- When, after more than three centuries, the spread became fairly rapid, owing, as we have seen, to circumstances of a distinctly mundane character, what was the effect on public morality? The Roman Empire passed its zenith in the first half of the second century--under Stoics. Historians agree that it was declining all through the third century. On the other hand, it was making fresh progress morally in the fourth century. It deteriorated morally after A.D. 380-90, the date of the triumph of Christianity! Do these facts bear out the Christian contention that Christianity purifies empire? If we continue the history of Christianity's spread, we find similar samples of Divine Providence and similar samples of moral progress. Take, for instance, the facts connected with the conversion of the barbarians, as related by the author of the apologetic work, Beneficial Influence of the Ancient Clergy. We learn that "Many a deviation from primitive simplicity, dangerous though it might justly seem to the integrity of the Roman faith, was productive of consequences the most momentous to tribes who reverenced principally the pomp and mysterious ceremony attendant on the faith which they embraced, and would have scorned to bow down before priests or altars whose faultless humility merely recalled the rude shrines of their native forests." Also we learn that "the lavish piety of barbarian sovereigns" directed "the plunder of suffering lands into the capacious coffers of the Church." Although this led to "the most fatal period of clerical corruption," our apologist is yet able to see in it the guiding hand of Providence establishing "the constant grandeur of the ecclesiastical edifice"! In Central Europe it was by force of arms that Charlemagne succeeded in spreading Christianity. "It cannot be doubted," we are told, "that the conquering hosts of the Franks were far more effective in the conversion of Central Europe than could have been the most self-denying of missionaries, or the most undoubtedly miraculous of Italian relics." This fresh spread took place towards the close of the eighth century. After a hundred years or so for the leaven to work, we should expect to see a distinct advance in morality among both the clergy and the laity. We find, on the contrary, that during the whole of the tenth century the spectacle presented by society was "revolting." "Not only did the clerical body present sure tokens of that gigantic cancer which was wasting the energies of the Church, but their degeneracy was relieved by nothing that was noble or praiseworthy among the laity." P. 315, lines 3-4.--The Rationalistic explanation of that essence of the "religious instinct," belief in an after-life.