Sicorius was fortunately at liberty to yield the point.

He at once withdrew the fifth article of the treaty, and, the other four being accepted, a formal peace was concluded between the two nations.
To understand the real character of the peace now made, and to appreciate properly the relations thereby established between Rome and Persia, it will be necessary to examine at some length the several conditions of the treaty, and to see exactly what was imported by each of them.

There is scarcely one out of the whole number that carries its meaning plainly upon its face; and on the more important very various interpretations have been put, so that a discussion and settlement of some rather intricate points is here necessary.
(i.) There is a considerable difference of opinion as to the five provinces ceded to Rome by the first article of the treaty, as to their position and extent, and consequently as to their importance.

By some they are put on the right, by others on the left, bank of the Tigris; while of those who assign them this latter position some place them in a cluster about the sources of the river, while others extend them very much further to the southward.

Of the five provinces three only can be certainly named, since the authorities differ as to the two others.
These three are Arzanene, Cordyene, and Zabdicene, which occur in that order in Patricius.