Note 74 — BOOK IV.
Aubrey Stewart translation
‘Six hundred of these forts were built or repaired by the Emperor; but it seems reasonable to believe, that the far greater part of them consisted only of a brick or stone tower, in the midst of a square or circular area, which was surrounded by a wall and ditch, and afforded in a moment of danger some protection to the peasants and cattle of its neighbouring villages.’—Gibbon, ch. xl. (S.)