All these three phenomena developed together; they occupied about two hundred years—roughly from the year 300 to the year 500. When they had run their course the Western Empire was no longer governed as one society from one Imperial centre. The chance heads of certain auxiliary forces in the Roman Army, drawn from barbaric recruitment, had established themselves in the various provinces and were calling themselves “Kings.” The Catholic Church was everywhere the religion of the great majority; it had everywhere alliance with, and often the use of, the official machinery of government and taxation which continued unbroken. It had become, far beyond all other organisms in the Roman State, the central and typical organism which gave the European world its note. This process is commonly called “The Fall of the Roman Empire;” what was that “fall?” What really happened in this great transformation? III WHAT WAS THE “FALL” OF THE ROMAN EMPIRE? That state of society which I have just described, the ordered and united society of the Roman Empire, passed into another and very different state of society: the society of what are called “The Dark Ages.” From these again rose, after another 600 years of adventures and perils, the great harvest of mediæval civilization. Hardly had the Roman Empire turned in its maturity to accept the fruit of its long development (I mean the Catholic Church), when it began to grow old and was clearly about to suffer some great transition. But that transition, which threatened to be death, proved in the issue not death at all, but a mixture of Vision and Change. The close succession of fruit and decay in society is what one expects from the analogy of all living things: at the close of the cycle it is death that should come. A plant, just after it is most fruitful, falls quickly. So, one might imagine, should the long story of Mediterranean civilization have proceeded. When it was at its final and most complete stage, one would expect some final and complete religion which should satisfy its long search and solve its ancient riddles: but after such a discovery, after the fruit of such a maturity had fully developed, one would expect an end. Now it has been the singular fortune of our European civilization that an end did not come. Dissolution was in some strange way checked. Death was averted. And the more closely one looks into the unique history of that salvation—the salvation of all that could be saved in a most ancient and fatigued society—the more one sees that this salvation was effected by no agency save that of the Catholic Church. Everything else, after, say, 250 A.D., the empty fashionable philosophies, the barbarians filling the army, the current passions and the current despair, made for nothing but ruin.