The History of the Decline and Fall of the Roman Empire - Edward Gibbon [1498]
[Footnote 79: George of Pisidia, (Acroas. ii. 10, p. 8) has fixed this important point of the Syrian and Cilician gates. They are elegantly described by Xenophon, who marched through them a thousand years before. A narrow pass of three stadia between steep, high rocks, and the Mediterranean, was closed at each end by strong gates, impregnable to the land, accessible by sea, (Anabasis, l. i. p. 35, 36, with Hutchinson's Geographical Dissertation, p. vi.) The gates were thirty-five parasangs, or leagues, from Tarsus, (Anabasis, l. i. p. 33, 34,) and eight or ten from Antioch. Compare Itinerar. Wesseling, p. 580, 581. Schultens, Index Geograph. ad calcem Vit. Saladin. p. 9. Voyage en Turquie et en Perse, par M. Otter, tom. i. p. 78, 79.]
[Footnote 80: Heraclius might write to a friend in the modest words of Cicero: Castra habuimus ea ipsa quae contra Darium habuerat apud Issum Alexander, imperator haud paulo melior quam aut tu aut ego." Ad Atticum, v. 20. Issus, a rich and flourishing city in the time of Xenophon, was ruined by the prosperity of Alexandria or Scanderoon, on the other side of the bay.]
[Footnote 81: Foggini (Annotat. p. 31) suspects that the Persians were deceived by the of Aelian, (Tactic. c. 48,) an intricate spiral motion of the army. He observes (p. 28) that the military descriptions of George of Pisidia are transcribed in the Tactics of the emperor Leo.]
[Footnote 82: George of Pisidia, an eye-witness, (Acroas. ii. 122, &c.,) described in three acroaseis, or cantos, the first expedition of Heraclius. The poem has been lately (1777) published at Rome; but such vague and declamatory praise is far from corresponding with the sanguine hopes of Pagi, D'Anville, &c.]
Since the days of Scipio and Hannibal, no bolder enterprise has been attempted than that which Heraclius achieved for the deliverance of the empire ^83 He permitted the Persians to oppress for a while the provinces, and to insult with impunity the capital of the East; while the Roman emperor explored his perilous way through the Black Sea, ^84 and the mountains of Armenia, penetrated into the heart of Persia, ^85 and recalled the armies of the great king to the defence of their bleeding country. With a select band of five thousand soldiers, Heraclius sailed from Constantinople to Trebizond; assembled his forces which had wintered in the Pontic regions; and, from the mouth of the Phasis