"Aurelius Victor records the year as 35, Cassius Dio as 30. The latter has been more widely accepted" (Wend, n. 2). Ronald Syme considered the dates of Nerva's later offices more consistent with 35; see Syme, Ronald (1958). Tacitus. Oxford: Oxford University Press. tr. 653. ISBN0-19-814327-3.
roman-emperors.org
"Aurelius Victor records the year as 35, Cassius Dio as 30. The latter has been more widely accepted" (Wend, n. 2). Ronald Syme considered the dates of Nerva's later offices more consistent with 35; see Syme, Ronald (1958). Tacitus. Oxford: Oxford University Press. tr. 653. ISBN0-19-814327-3.