Jerome (4th century), Chronicon, 184.2. (Archive) "56 years and 6 months", which appears to give February/March 43 BC. This incorrect calculation is followed by most later historians. The error derives from an extra year given to Julius Caesar's "reign", which in turn lead to the subtraction of one year from Augustus, see Burgess 2014, halaman 38–40.
Josephus (1st century), The Jewish WarBook II, 9 (Archive). "Fifty-seven years, six months, and two days", which seems to give 17February 44 BC. He actually reckons his reign from 15 March 44BC, Caesar's murder, to 17 September AD14, Tiberius's formal accession, see Burgess 2014, halaman 39–43
Cassius Dio(53.1) indicates that he took the title princeps senatus in 28 BC. However, he also states that Augustus "added five years to his own terms as princeps, since his ten-year period was about to expire (this was in the consulship of Publius and Gnaeus Lentulus [18BC])" (54.12), meaning that his official tenure as princeps began in 27BC.
Res GestaeI.7, "For ten years in succession I was one of the triumvirs for the re-establishment of the constitution. To the day of writing this [June/July AD14] I have been princeps senatus for forty years."
InscrIt-13-02 and 00017: XVII –Kalendas Februarias–c(omitialis) Imp(erator) Caesar [Augustus est a]ppell[a]tus ipso VII et Agrip[pa III co(n)s(ulibus)].
CIL8375Diarkibkan 8 Jun 2021 di Wayback Machine: "[X]VII K(alendas) Febr(uarias) eo di[e Caesar Augustu]s appellatus est supplicatio Augusto".
Josephus (1st century), The Jewish WarBook II, 9 (Archive). "Fifty-seven years, six months, and two days", which seems to give 17February 44 BC. He actually reckons his reign from 15 March 44BC, Caesar's murder, to 17 September AD14, Tiberius's formal accession, see Burgess 2014, halaman 39–43
Jerome (4th century), Chronicon, 184.2. (Archive) "56 years and 6 months", which appears to give February/March 43 BC. This incorrect calculation is followed by most later historians. The error derives from an extra year given to Julius Caesar's "reign", which in turn lead to the subtraction of one year from Augustus, see Burgess 2014, halaman 38–40.
