EDWARD GIBBON: Historical Works, Memoirs & Letters (Including "The History of the Decline and Fall of the Roman Empire"). Edward Gibbon

most of her wars having either been terminated by absolute conquest, or waged against barbarians ignorant of the use of letters. I. The Aboras, or, as it is called by Xenophon, the Araxes, was fixed as the boundary between the two monarchies. 77 That river, which rose near the Tigris, was increased, a few miles below Nisibis, by the little stream of the Mygdonius, passed under the walls of Singara, and fell into the Euphrates at Circesium, a frontier town, which, by the care of Diocletian, was very strongly fortified. 78 Mesopotomia, the object of so many wars, was ceded to the empire; and the Persians, by this treaty, renounced all pretensions to that great province. II. They relinquished to the Romans five provinces beyond the Tigris. 79 Their situation formed a very useful barrier, and their natural strength was soon improved by art and military skill. Four of these, to the north of the river, were districts of obscure fame and inconsiderable extent; Intiline, Zabdicene, Arzanene, and Moxoene; † but on the east of the Tigris, the empire acquired the large and mountainous territory of Carduene, the ancient seat of the Carduchians, who preserved for many ages their manly freedom in the heart of the despotic monarchies of Asia. The ten thousand Greeks traversed their country, after a painful march, or rather engagement, of seven days; and it is confessed by their leader, in his incomparable relation of the retreat, that they suffered more from the arrows of the Carduchians, than from the power of the Great King. 80 Their posterity, the Curds, with very little alteration either of name or manners, * acknowledged the nominal sovereignty of the Turkish sultan. III. It is almost needless to observe, that Tiridates, the faithful ally of Rome, was restored to the throne of his fathers, and that the rights of the Imperial supremacy were fully asserted and secured. The limits of Armenia were extended as far as the fortress of Sintha in Media, and this increase of dominion was not so much an act of liberality as of justice. Of the provinces already mentioned beyond the Tigris, the four first had been dismembered by the Parthians from the crown of Armenia; 81 and when the Romans acquired the possession of them, they stipulated, at the expense of the usurpers, an ample compensation, which invested their ally with the extensive and fertile country of Atropatene. Its principal city, in the same situation perhaps as the modern Tauris, was frequently honored by the residence of Tiridates; and as it sometimes bore the name of Ecbatana, he imitated, in the buildings and fortifications, the splendid capital of the Medes. 82 IV. The country of Iberia was barren, its inhabitants rude and savage. But they were accustomed to the use of arms, and they separated from the empire barbarians much fiercer and more formidable than themselves. The narrow defiles of Mount Caucasus were in their hands, and it was in their choice, either to admit or to exclude the wandering tribes of Sarmatia, whenever a rapacious spirit urged them to penetrate into the richer climes of the South. 83 The nomination of the kings of Iberia, which was resigned by the Persian monarch to the emperors, contributed to the strength and security of the Roman power in Asia. 84 The East enjoyed a profound tranquillity during forty years; and the treaty between the rival monarchies was strictly observed till the death of Tiridates; when a new generation, animated with different views and different passions, succeeded to the government of the world; and the grandson of Narses undertook a long and memorable war against the princes of the house of Constantine.

The arduous work of rescuing the distressed empire from tyrants and barbarians had now been completely achieved by a succession of Illyrian peasants. As soon as Diocletian entered into the twentieth year of his reign, he celebrated that memorable aera, as well as the success of his arms, by the pomp of a Roman triumph. 85 Maximian, the equal partner of his power, was his only companion in the glory of that day. The two Caesars had fought and conquered, but the merit of their exploits was ascribed, according to the rigor of ancient maxims, to the auspicious influence of their fathers and emperors. 86 The triumph of Diocletian and Maximian was less magnificent, perhaps, than those of Aurelian and Probus, but it was dignified by several circumstances of superior fame and good fortune. Africa and Britain, the Rhine, the Danube, and the Nile, furnished their respective trophies; but the most distinguished ornament was of a more singular nature, a Persian victory followed by an important conquest. The representations of rivers, mountains, and provinces, were carried before the Imperial car. The images of the captive wives, the sisters, and the children of the Great King, afforded a new and grateful spectacle to the vanity of the people. 87 In the eyes of posterity, this triumph is remarkable, by a distinction of a less honorable kind. It was the last that Rome ever beheld. Soon after this period, the emperors ceased to vanquish, and Rome ceased to be the capital of the empire.

The spot on which Rome was founded had been consecrated by ancient ceremonies and imaginary miracles. The presence of some god, or the memory of some hero, seemed to animate every part of the city, and the empire of the world had been promised to the Capitol. 88 The native Romans felt and confessed the power of this agreeable illusion. It was derived from their ancestors, had grown up with their earliest habits of life, and was protected, in some measure, by the opinion of political utility. The form and the seat of government were intimately blended together, nor was it esteemed possible to transport the one without destroying the other. 89 But the sovereignty of the capital was gradually annihilated in the extent of conquest; the provinces rose to the same level, and the vanquished nations acquired the name and privileges, without imbibing the partial affections, of Romans. During a long period, however, the remains of the ancient constitution, and the influence of custom, preserved the dignity of Rome. The emperors, though perhaps of African or Illyrian extraction, respected their adopted country, as the seat of their power, and the centre of their extensive dominions. The emergencies of war very frequently required their presence on the frontiers; but Diocletian and Maximian were the first Roman princes who fixed, in time of peace, their ordinary residence in the provinces; and their conduct, however it might be suggested by private motives, was justified by very specious considerations of policy. The court of the emperor of the West was, for the most part, established at Milan, whose situation, at the foot of the Alps, appeared far more convenient than that of Rome, for the important purpose of watching the motions of the barbarians of Germany. Milan soon assumed the splendor of an Imperial city. The houses are described as numerous and well built; the manners of the people as polished and liberal. A circus, a theatre, a mint, a palace, baths, which bore the name of their founder Maximian; porticos adorned with statues, and a double circumference of walls, contributed to the beauty of the new capital; nor did it seem oppressed even by the proximity of Rome. 90 To rival the majesty of Rome was the ambition likewise of Diocletian, who employed his leisure, and the wealth of the East, in the embellishment of Nicomedia, a city placed on the verge of Europe and Asia, almost at an equal distance between the Danube and the Euphrates. By the taste of the monarch, and at the expense of the people, Nicomedia acquired, in the space of a few years, a degree of magnificence which might appear to have required the labor of ages, and became inferior only to Rome, Alexandria, and Antioch, in extent of populousness. 91 The life of Diocletian and Maximian was a life of action, and a considerable portion of it was spent in camps, or in the long and frequent marches; but whenever the public business allowed them any relaxation, they seemed to have retired with pleasure to their favorite residences of Nicomedia and Milan. Till Diocletian, in the twentieth year of his reign, celebrated his Roman triumph, it is extremely doubtful whether he ever visited the