Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[371] The Babylonians were now freed from Anileus's heavy incursions, which had been a great restraint to the effects of that hatred they bore to the Jews; for they were almost always at variance, by reason of the contrariety of their laws; and which party soever grew boldest before the other, they assaulted the other: and at this time in particular it was, that upon the ruin of Anileus's party, the Babylonians attacked the Jews, which made those Jews so, vehemently to resent the injuries they received from the Babylonians, that being neither able to fight them, nor bearing to live with them, they went to Seleucia, the principal city of those parts, which was built by Seleucus Nicator. It was inhabited by many of the Macedonians, but by more of the Grecians; not a few of the Syrians also dwelt there; and thither did the Jews fly, and lived there five years, without any misfortunes. But on the sixth year, a pestilence came upon these at Babylon, which occasioned new removals of men's habitations out of that city; and because they came to Seleucia, it happened that a still heavier calamity came upon them on that account which I am going to relate immediately.