Page:The age of Justinian and Theodora (Volume 1).djvu/160

 point on the opposite shore of the Red Sea the Asiatic border of their dominions began. Passing northwards to regain that part of the Euxine from whence we started, the eastern frontier pursued a long and irregular track, at first along the margin of the Arabian desert as it verges on the Sinaitic peninsula, Palestine, and Syria; then crossing the Euphrates it gained the Tigris, so as to include the northern portion of Mesopotamia. Finally, returning to the former river, it joined it in its course along the western limits of Armenia, whence it reached the Phasis on the return journey, the point from which we set out. Considered in their greatest length, from the Danube above Sirmium, to Syene on the Nile, and in their extreme width, from the Tigris in the longitude of Daras or Nisibis, to the Acroceraunian rocks on the coast of Epirus, these ample dominions stretch from north to south for nearly eighteen hundred miles, and from east to west for more than twelve hundred. In superficial area this tract may be estimated to contain about half a million of square miles, that is, an amount of surface fully four times