In B. J. Bk. VI. 8. 5 and 10. 1 Josephus puts the completion of the siege on the eighth of the month Elul (September), and in the second passage he puts it in the second year of Vespasian. Vespasian was proclaimed emperor in Egypt July 1, 69, so that Sept. 8 of his second year would be Sept. 8, a.d. 70. (Cf. Schürer, N. T. Zeitgesch. p. 347.)