Among Roman writers of his own day whom Josephus used was the Emperor Vespasian himself, who, to record his exploits, wrote _Commentaries on the Jewish War_, which were placed at his client's disposal.[1] In the competition of flattery that greeted the new Flavian dynasty, various Roman writers described and celebrated the Jewish campaigns.[2] Among them were Antonius Julianus, who was on the staff of Vespasian and Titus throughout the war, and at the end of it was appointed procurator of Judea; Valerius Flaccus, who burst into ecstatic hexameters over the burning of the Temple; and Tacitus, the most brilliant of all Latin historians. Besides these writers' works, which have come down to us more or less complete, a number of memoirs and histories of the war appeared, some by those who wrote on hearsay, others by men who had taken some part in the campaigns. It was an age of literary dilettantism, when nearly everybody wrote books who knew how to write; and in the drab monotony of Roman supremacy, the triumph over the Jews, which had placed the Flavian house on the throne, was a happy opportunity for ambitious authors. [Footnote 1: Vita, 68.] [Footnote 2: C. Ap. 9-10.] It has been suggested that the Roman point of view that pervades the _Wars_ of Josephus, the frequent absence of sympathy with the Jewish cause, and the incongruous pagan ideas, which surprise us, can be explained by the fact that the Jewish writer founded his account on that of Antonius Julianus, which is referred to by the Christian apologist Minucius[1] as a standard authority on the destruction of Jerusalem. Antonius is mentioned by Josephus as one of the Roman staff who gave his opinion in favor of the burning of the Temple, and he has also been ingeniously identified with the Roman general (called [Hebrew: Otaninus] or [Hebrew: Ananitus]) who engaged in controversy with Rabbi Johanan ben Zakkai.[2] The evidence in favor of the theory is examined more fully later; but whether or not the history of Antonius was the main source of the _Wars_, it is certain that Josephus had before him Gentile accounts of the struggle, and he often slavishly adopted not only their record of facts but their expressions of opinion. In point of time Tacitus might have derived from Josephus his summary of the Jewish Wars, part of which has come down to us, and on some points the Jewish and the Roman authors agree; but the correspondence is to be explained more readily by the use of a common source by both writers. It is unlikely that the haughty patrician, who hated and despised the Jews, and who had no love of research, turned to a Jewish chronicle for his information, when he had a number of Roman and Greek authors to provide him with food for his epigrams. [Footnote 1: Epist. ad Octav. 33.] [Footnote 2: Yer. Sanhedrin, i. 4. Comp. Schlatter, Zur Topographie und Geschichte Palaestinas, pp. 97_ff_.]