Note 820 — Chapter XXIX
E. J. (Edward James) Chinnock translation
Cf. Ammianus, xxiii. 6, 32, 33. The Magi were the priests of the religion of Zoroaster, which was professed by the Medes and Persians. Their Bible was the Avesta, originally consisting of twenty-one books, only one of which, the twentieth (Vendidad), is still extant.