Note 57 — Chapter XCI · FIRST PERIOD OF THE REIGN OF ALEXANDER THE GREAT — SIEGE AND CAPTURE OF THEBES.

Arrian, i. 1, 12, 17. The precise locality of that steep road whereby Alexander crossed the Balkan, cannot be determined. Baron von Moltke, in his account of the Russian campaign in Bulgaria (1828-1829), gives an enumeration of four roads, passable by an army, crossing this chain from north to south (see chap. i. of that work). But whether Alexander passed by any one of these four, or by some other road still more to the west, we cannot tell.