Note 256 — BOOK VI. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST, OR FORMERLY EXISTED.
John Bostock translation
Bactra, Bactrum, or Bactrium, was one of the chief cities, if not the capital, of the province of Bactriana. It was one of the most ancient cities in the world, and the modern Balkh is generally supposed to occupy its site. Strabo, as well as Pliny, evidently considers that Bactra and Zareispa were the same place, while Appian distinguishes between the two, though he does not clearly state their relative positions.