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OF THE ROMAN EMPIRE
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ducting deep mines, and of raising platforms to the level of the rampart; he shook the strongest battlements with his military engines, and sometimes advanced to the assault with a line of moveable turrets on the backs of elephants. In the great cities of the East, the disadvantage of space, perhaps of position, was compensated by the zeal of the people, who seconded the garrison in the defence of their country and religion; and the fabulous promise of the Son of God, that Edessa should never be taken, filled the citizens with valiant confidence, and chilled the besiegers with doubt and dismay.[1] The subordinate towns of Armenia and Mesopotamia were diligently strengthened, and the posts which appeared to have any command of ground or water were occupied by numerous forts, substantially built of stone, or more hastily erected with the obvious materials of earth and brick. The eye of Justinian investigated every spot; and his cruel precautions might attract the war into some lonely vale, whose peaceful natives, connected by trade and marriage, were ignorant of national discord and the quarrels of princes. Westward of the Euphrates, a sandy desert extends above six hundred miles to the Red Sea. Nature had interposed a vacant solitude between the ambition of two rival empires; the Arabians, till Mahomet arose, were formidable only as robbers; and, in the proud security of peace, the fortifications of Syria were neglected on the most vulnerable side.

Death of Perozes, king of Persia. A.D. 488 But the national enmity, at least the effects of that enmity, had been suspended by a truce, which continued above fourscore years. An ambassador from the emperor Zeno accompanied the rash and unfortunate Perozes, in his expedition against the Nepthalites or white Huns, whose conquests had been stretched from the Caspian to the heart of India, whose throne was enriched with emeralds,[2] and whose cavalry was supported by
  1. Procopius (Persic. l. ii. c. 12) tells the story with a tone half sceptical, half superstitious, of Herodotus. The promise was not in the primitive lie of Eusebius, but dates at least from the year 400; and a third lie, the Veronica, was soon raised on the two former (Evagrius, l. iv. c. 27). As Edessa has been taken, Tillemont must disclaim the promise (Mém. Ecclés. tom. i. p. 362, 383, 617).
  2. They were purchased from the merchants of Adulis who traded to India (Cosmas, Topograph. Christ. l. xi. p. 339); yet, in the estimate of precious stones, the Scythian emerald was the first, the Bactrian the second, the Æthiopian only the third (Hill's Theophrastus, p. 61, &c. 92). The production, mines, &c. of emeralds, are involved in darkness; and it is doubtful whether we possess any of the twelve sorts known to the ancients (Goguet, Origine des Loix, &c. part ii. l. ii. c. 2, art. 3). In this war the Huns got, or at least Perozes lost, the finest pearl in the world, of which Procopius relates a ridiculous fable.