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THE DECLINE AND FALL

him, though sincerely desirous of peace, to negotiate with the greater weight and dignity. Three persons only assisted at this important conference; the minister Apharban, the præfect of the guards, and an officer who had commanded on the Armenian frontier.[1] The first condition, proposed by the ambassador, is not at present of a very intelligible nature; that the city of Nisibis might be established for the place of mutual exchange, or, as we should formerly have termed it, for the staple of trade between the two empires. There is no difficulty in conceiving the intention of the Roman princes to improve their revenue by some restraints upon commerce; but, as Nisibis was situated within their own dominions, and as they were masters both of the imports and exports, it should seem that such restraints were the objects of an internal law rather than of a foreign treaty. To render them more effectual, some stipulations were probably required on the side of the king of Persia, which appeared so very repugnant either to his interest or to his dignity, that Narses could not be persuaded to subscribe them. As this was the only article to which he refused his consent, it was no longer insisted on; and the emperors either suffered the trade to flow in its natural channels, or contented themselves with such restrictions as it depended on their own authority to establish.

and articles of the treaty As soon as this difficulty was removed, a solemn peace was concluded and ratified between the two nations. The conditions of a treaty so glorious to the empire, and so necessary to Persia, may deserve a more peculiar attention, as the history of Rome presents very few transactions of a similar nature; most of her wars having either been terminated by absolute conquest, or waged against barbarians ignorant of the use of letters. The Aboras fixed as the limit between the empires I. The Aboras, or, as it is called by Xenophon, the Araxes, was fixed as the boundary between the two monarchies.[2] 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.[3] Meso-

  1. He had been governor of Sumium. (Pet. Patricius in Excerpt. Legat. p. 30 [F.H.G. iv. p. 189].) This province seems to be mentioned by Moses of Chorene (Geograph. p. 360), and lay to the east of Mount Ararat.
  2. By an error of the geographer Ptolemy, the position of Singara is removed from the Aboras to the Tigris, which may have produced the mistake of Peter in assigning the latter river for the boundary, instead of the former. The line of the Roman frontier traversed, but never followed, the course of the Tigris. [The Aboras rises a long way to the west of the Tigris; and Nisibis is situated on tbe Mygdonius.]
  3. Procopius de Ædificiis, l. ii. c.