The particular genius of Rome had always been in its conception of citizenship, a fact made more extraordinary since it came of age in a world which more often than not restricted citizenship to individual cities. Fifth-century Greece, which had so dazzled the Mediterranean with its brilliance, remained at its heart a patchwork collection of city-states, and for all its glory could never quite transform a Spartan into an Athenian or an Athenian into a Spartan. Locked firmly behind their walls, the cities were unable to refresh themselves, and after a few remarkable generations the luster all too quickly burned itself out. The Romans, on the other hand, had expanded the concept beyond the narrow confines of a single city, spreading citizenship in the wake of its legions. Athens in all its splendid exclusivity had remained just a city; Rome had embraced the world.
Yet for all the empire’s inclusiveness, the Romans tended to look down their noses at the peoples just beyond their borders. Those outside of the Roman orbit lacked citizenship and were therefore barbarians, uncivilized regardless of their cultural achievements. Of course, the astute among them realized that their own ancestors had once been considered as barbaric as the tribes beyond the Rhine and were perfectly aware that a few centuries in the imperial melting pot had made Romans of them all. The most recent flood of newcomers, however, seemed different. The empire had always been able to absorb new people into its expanding body, and the immigrants had proved more often than not to be a source of strength, but times had changed. The empire was now on the defensive, and the Germanic peoples crossing its borders wanted its land, not its culture. They were coming on their own terms, unwilling to be absorbed, speaking their own languages, and retaining their distinct cultures. The influx of new blood was no longer the source of strength it had always been. For many of those watching the traditions of millennia getting swept away, the strangers seemed like a frightening wave threatening to overwhelm the empire.
It would have been difficult at the best of times to absorb the sheer volume of newcomers, but, unfortunately for the empire, this massive wave of immigration came at a time when remarkably shortsighted rulers sat on the imperial throne. There had been a depressing decrease in quality ever since Julian’s death. His immediate successor had left a brazier burning in his tent one night and suffocated only eight months into his reign, and this left the throne to a pair of rather boorish brothers named Valentinian and Valens, who split the empire between them and tried to shore up the crumbling frontiers. Valentinian, the older of the two, managed to keep the West together for eleven years, while at the same time maintaining a restraining influence on the brash young Valens, but he could never control his own temper and suffered a fatal aneurysm in the midst of a characteristic rant. His sixteen-year-old son, Gratian, inherited the throne but was too young to assert himself, and this left the mercurial Valens as the driving force behind imperial policy.
With the Roman stage conspicuously empty of statesmen, the Visigoths and Ostrogoths asked permission to settle in Roman territory. They had left the frozen lands of Germany and Scandinavia behind and had come in search of new lands, something the fertile Eastern Empire seemed to have in abundance. They promised to provide troops in exchange for land, and the emperor obligingly agreed, allowing two hundred thousand Goths to cross into imperial territory and lumber toward their new homes in Thrace.
In theory, Valens’s plan to bolster the depleted imperial army with Germanic troops and at the same time repopulate devastated lands was an excellent idea, but it was doomed from the start. There was no way that the eastern government could handle such a staggering influx of immigrants, and Valens hardly even bothered to try. Shipments of food promised to the Goths arrived rotten or of such low quality as to be barely edible. Local merchants fleeced the starving newcomers, and several magistrates even started kidnapping them and selling them into slavery. Provoked beyond endurance, the Goths erupted in revolt.