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376 fertile country of Atropatene. Its principal city, in the same situation perhaps as the modern Tauris, was frequently honoured with 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. 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 climates of the South. 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. 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 æra, as well as the success of his arms, by the pomp of a Roman triumph. Maximian, the equal partner of his power, was his only companion in the glory of that day. The two Cæsars had fought and conquered, but the merit of their exploits was ascribed, according to the rigour of ancient maxims, to the auspicious influence of their fathers and emperors. The triumph of Diocletian and Maximian was less magnificent, perhaps, than those of Aurelian and Probus, but it was dignified