When Gallienus received the intelligence that his capital was delivered from the barbarians, he was much less delighted than alarmed with the courage of the senate, since it might one day prompt them to rescue the public from domestic tyranny as well as from foreign invasion. His timid ingratitude was published to his subjects, in an edict which prohibited the senators from exercising any military employment, and even from approaching the camps of the legions. But his fears were groundless. The rich and luxurious nobles, sinking into their natural character, accepted, as a favor, this disgraceful exemption from military service; and as long as they were indulged in the enjoyment of their baths, their theatres, and their villas, they cheerfully resigned the more dangerous cares of empire to the rough hands of peasants and soldiers. 90
Another invasion of the Alemanni, of a more formidable aspect, but more glorious event, is mentioned by a writer of the lower empire. Three hundred thousand are said to have been vanquished, in a battle near Milan, by Gallienus in person, at the head of only ten thousand Romans. 91 We may, however, with great probability, ascribe this incredible victory either to the credulity of the historian, or to some exaggerated exploits of one of the emperor’s lieutenants. It was by arms of a very different nature, that Gallienus endeavored to protect Italy from the fury of the Germans. He espoused Pipa, the daughter of a king of the Marcomanni, a Suevic tribe, which was often confounded with the Alemanni in their wars and conquests. 92 To the father, as the price of his alliance, he granted an ample settlement in Pannonia. The native charms of unpolished beauty seem to have fixed the daughter in the affections of the inconstant emperor, and the bands of policy were more firmly connected by those of love. But the haughty prejudice of Rome still refused the name of marriage to the profane mixture of a citizen and a barbarian; and has stigmatized the German princess with the opprobrious title of concubine of Gallienus. 93
III. We have already traced the emigration of the Goths from Scandinavia, or at least from Prussia, to the mouth of the Borysthenes, and have followed their victorious arms from the Borysthenes to the Danube. Under the reigns of Valerian and Gallienus, the frontier of the last-mentioned river was perpetually infested by the inroads of Germans and Sarmatians; but it was defended by the Romans with more than usual firmness and success. The provinces that were the seat of war, recruited the armies of Rome with an inexhaustible supply of hardy soldiers; and more than one of these Illyrian peasants attained the station, and displayed the abilities, of a general. Though flying parties of the barbarians, who incessantly hovered on the banks of the Danube, penetrated sometimes to the confines of Italy and Macedonia, their progress was commonly checked, or their return intercepted, by the Imperial lieutenants. 94 But the great stream of the Gothic hostilities was diverted into a very different channel. The Goths, in their new settlement of the Ukraine, soon became masters of the northern coast of the Euxine: to the south of that inland sea were situated the soft and wealthy provinces of Asia Minor, which possessed all that could attract, and nothing that could resist, a barbarian conqueror.
The banks of the Borysthenes are only sixty miles distant from the narrow entrance 95 of the peninsula of Crim Tartary, known to the ancients under the name of Chersonesus Taurica. 96 On that inhospitable shore, Euripides, embellishing with exquisite art the tales of antiquity, has placed the scene of one of his most affecting tragedies. 97 The bloody sacrifices of Diana, the arrival of Orestes and Pylades, and the triumph of virtue and religion over savage fierceness, serve to represent an historical truth, that the Tauri, the original inhabitants of the peninsula, were, in some degree, reclaimed from their brutal manners by a gradual intercourse with the Grecian colonies, which settled along the maritime coast. The little kingdom of Bosphorus, whose capital was situated on the Straits, through which the Maeotis communicates itself to the Euxine, was composed of degenerate Greeks and half-civilized barbarians. It subsisted, as an independent state, from the time of the Peloponnesian war, 98 was at last swallowed up by the ambition of Mithridates, 99 and, with the rest of his dominions, sunk under the weight of the Roman arms. From the reign of Augustus, 100 the kings of Bosphorus were the humble, but not useless, allies of the empire. By presents, by arms, and by a slight fortification drawn across the Isthmus, they effectually guarded against the roving plunderers of Sarmatia, the access of a country, which, from its peculiar situation and convenient harbors, commanded the Euxine Sea and Asia Minor. 101 As long as the sceptre was possessed by a lineal succession of kings, they acquitted themselves of their important charge with vigilance and success. Domestic factions, and the fears, or private interest, of obscure usurpers, who seized on the vacant throne, admitted the Goths into the heart of Bosphorus. With the acquisition of a superfluous waste of fertile soil, the conquerors obtained the command of a naval force, sufficient to transport their armies to the coast of Asia. 102 This ships used in the navigation of the Euxine were of a very singular construction. They were slight flat-bottomed barks framed of timber only, without the least mixture of iron, and occasionally covered with a shelving roof, on the appearance of a tempest. 103 In these floating houses, the Goths carelessly trusted themselves to the mercy of an unknown sea, under the conduct of sailors pressed into the service, and whose skill and fidelity were equally suspicious. But the hopes of plunder had banished every idea of danger, and a natural fearlessness of temper supplied in their minds the more rational confidence, which is the just result of knowledge and experience. Warriors of such a daring spirit must have often murmured against the cowardice of their guides, who required the strongest assurances of a settled calm before they would venture to embark; and would scarcely ever be tempted to lose sight of the land. Such, at least, is the practice of the modern Turks; 104 and they are probably not inferior, in the art of navigation, to the ancient inhabitants of Bosphorus.
The fleet of the Goths, leaving the coast of Circassia on the left hand, first appeared before Pityus, 105 the utmost limits of the Roman provinces; a city provided with a convenient port, and fortified with a strong wall. Here they met with a resistance more obstinate than they had reason to expect from the feeble garrison of a distant fortress. They were repulsed; and their disappointment seemed to diminish the terror of the Gothic name. As long as Successianus, an officer of superior rank and merit, defended that frontier, all their efforts were ineffectual; but as soon as he was removed by Valerian to a more honorable but less important station, they resumed the attack of Pityus; and by the destruction of that city, obliterated the memory of their former disgrace. 106
Circling round the eastern extremity of the Euxine Sea, the navigation from Pityus to Trebizond is about three hundred miles. 107 The course of the Goths carried them in sight of the country of Colchis, so famous by the expedition of the Argonauts; and they even attempted, though without success, to pillage a rich temple at the mouth of the River Phasis.