Yet the tragic story, its main themes and protagonists were for all to see. No observer should have failed to notice that the Roman Empire of the fourth and fifth centuries was no longer the Roman Empire of the great Antonine and Augustan age; that it had lost its hold over its territories and its economic cohesion and was menaced by the barbarians who were in the end to overwhelm it. The territory of the Roman Empire had at its height stretched from the lands bordering the North Sea to the lands on the northern fringes of the Sahara, and from the Atlantic coast of Europe to the central Asiatic Steppes; it comprised most of the regions of the former Hellenic, Iranian, and Phoenician empires, and it either ruled or kept in check great clusters of peoples and principalities beyond its Gallic and north African frontiers. From these farthest frontiers Rome of the fourth century had retreated and was still retreating.
Within its frontiers great currents of inter-regional commerce had in earlier centuries flowed along the routes which bound all the provinces of the Empire to Rome and most of the provinces to each other. But from the third century onwards the economic unity of the Empire was in dissolution, and by the fifth century most of the great currents of inter-regional trade had ceased to flow, and provinces and districts had been thrown upon themselves and their own resources. And with the wealth of the provinces reduced, their commerce restricted, the great provincial cities also declined in population, wealth, political power.
Yet to its very last days the Empire endeavoured to defend its frontiers against the converging barbarians. Not only did the Barbarian Conquests, like all conquests, threaten destruction and ruin, but the way of life the barbarians stood for was the very denial of what Roman civilization had been, though alas, was gradually ceasing to be.
However, it was not in material things, that the contemporaries found, or should have found the sharpest conflict between Rome and the barbarian prospects before it. Above all Roman civilization was a civilization of the mind. It had behind it a long tradition of thought and of intellectual achievement, the legacy of Greece, to which it had in turn made its own contribution. The Roman world was a world of schools and universities, writers, and builders. The barbarian world was a world in which mind was in its infancy and its infancy was long. The battle sagas of the race, which have all but disappeared or have survived only as legends worked up in a later age; the few rude laws which were needed to regulate personal relationships, this was hardly civilization in the Roman sense. King Chilperic, trying to make verses in the style of Sedulius, though he could not distinguish between a long foot and a short and they all hobbled; Charlemagne himself, going to bed with his slate under his pillow in order to practice in the watches of the night that art of writing which he never mastered; what have they in common with Julius Caesar and Marcus Aurelius and that great Julian called the Apostate? They sum up in their very persons the whole wide gulf that yawned between Germany and Rome.
Rome and the barbarians were thus not only protagonists but two different attitudes to life, civilization and barbarism. We cannot here discuss in detail the question as to why, in the clash between the two, it was civilization which perished and barbarism which prevailed. But it is important to remember that while the Empire tried to defend its frontiers against the barbarian hosts, it gradually opened them to barbarian settlers.
This peaceful infiltration of barbarians which altered the whole character of the society which it invaded would have been impossible, of course, if that society had not been stricken by disease. The disease is plain enough to see by the third century. It shows itself in those internecine civil wars in which civilization rends itself, province against province and army against army. It shows itself in the great inflationary crisis from about 268 and in the taxation which gradually crushed out the smaller bourgeoisie while the fortunes of the rich escaped its net. It shows itself in the gradual sinking back of an economy based upon free exchange into more and more primitive conditions when every province seeks to be self-sufficient and barter takes the place of trade. It shows itself in the decline of farming and in the workless city population kept quiet by their dole of bread and their circuses, whose life contrasted so dramatically, so terribly with that of the haughty senatorial families and the great landowners in their palatial villas and town houses. It shows itself in the rise of mystical faiths on the ruins of philosophy, and of superstition (more especially astrology) on the ruins of reason. One religion in particular grew mighty, by clasping its sacred book and addressing itself with words of hope to the victims of social injustice, but although it was able to bring comfort to individuals it could do nothing, indeed it did not try, to give new strength or inspiration to the embattled civilization. True to its own ethos it was impartial as between Barbarian and Roman, or between the Romans who prospered and ruled and those outside the pale.
The most obvious manifestation of Roman society in decline was the dwindling numbers of Roman citizens. The Empire was being depopulated long before the end of the period of peace and prosperity which stretched from Augustus to Marcus Aurelius. Does not Augustus himself summon the poor man of Fiesole who has a family of eight children, thirty-six grandchildren and eighteen great grandchildren, and organize in his honour a fête in the Capitol, accompanied by a great deal of publicity? Does not Tacitus, half-anthropologist and half-Rousseau, describing the noble savage with his eye on fellow citizens, remark that among the Germans it is accounted a shameful thing to limit the number of your children? The long duration of Augustus's legislation to raise the birthrate is significant; successful it was not, but the fact that it was maintained on the statute book and systematically revised and developed for three centuries shows that it was at least accounted necessary. It is true of course that the mortality rate was a far more important factor in those days than it is in our own, and the mortality from pestilence and civil war from Marcus Aurelius onwards was exceptional. And it is plain that the proportion of celibates was high in the Roman empire and that the fall in the fertility of marriages was going on. It is the childless marriage, the small family system that contemporary writers deplore. In Seeley's striking phrase: 'The human harvest was bad,' It was bad in all classes, but the decline was most marked in the upper ranks, the most educated, the most civilized, the potential leaders of the race. In the terrible words of Swift, facing his own madness, the Roman Empire might have cried: 'I shall die like a tree--from the top downwards.'
Why (the insistent question forces itself) did this civilization lose the power to reproduce itself? Was it, as Polybius said, because people preferred amusements to children or wished to bring their children up in comfort? Hardly, for it is more marked among the rich than the poor and the rich can have the best of both worlds. Was it because people had grown discouraged and disheartened, no longer believing in their own civilization and loath to bring children into the darkness and disaster of their war-shattered world? We do not know. But we can see the connection of the falling population with the other evils of the empire--the heavy cost of administration relatively heavier when the density of the population is low; the empty fields, the dwindling legions which did not suffice to guard the frontier.
To cure this sickness of population the Roman rulers knew no other way than to dose it with barbarian vigour. Just a small injection to begin with and then more and more till in the end the blood that flowed in its veins was not Roman but barbarian. In came the Germans to settle the frontier, to till the fields, to enlist first in the auxiliaries and then in the legions, to fill the great offices of state. The army is barbarized, and a modern writer, Mr Moss, has quoted most effectively the complaint of the Egyptian mother clamouring to get back her son who (as she says) has gone off with the barbarians--he means that he has enlisted in the Roman legions. The legions are barbarized and they barbarize the Emperor. For them he is no longer the majestic embodiment of law, he is their leader, their Führer, and they raise him on their shields. And side by side with the barbarization of the army goes the barbarization of civil manners too. In 397 Honorius has to pass an edict forbidding the wearing of German fashions within the precincts of Rome. And in the end, half barbarian themselves, they have only barbarians to defend them against barbarism.
Such was the general picture of the great ruin of civilization amidst which the Romans of the fourth, fifth, and sixth centuries lived. What then did it feel like to live at a time when civilization was going down before the forces of barbarism? Did people realize what was happening? Did the gloom of the Dark Ages cast its shadow before? It so happens that we can answer these questions very clearly if we fix our eyes on one particular part of the Empire, the famous and highly civilized province of Gaul. We can catch the decline at three points because in three consecutive centuries, Gallo-Roman writers have left us a picture of their life and times. In the fourth century we have Ausonius, in the fifth Sidonius Apollinarius, in the sixth Gregory of Tours and Fortunatus, a stranger from Italy, who made his home in Poitiers. They show us Auvergne and the Bordelais in the evening light. The fourth, the fifth, and the sixth centuries--going, going, gone!