Schulten, Masada, pp. 17–18. Most scholars concur with these dates, but some push the events forward to 73–74 A.D. See Hannah M. Cotton, “The Date of the Fall of Masada—The Evidence of the Masada Papyri,” Zeitschrift für papyrologie und epigraphik 78 (1989), pp. 157–162; see also Feldman, Josephus and Modern Scholarship, p. 789.