ante diem xiii kalendas sextilias
- ludi Victoriae Caesaris (day 1) — games instituted by/adjusted by Octavian to honour his adoptive father shortly after the latter’s death (possibly moving Caesar’s own ludi Veneris Genetricis)
- 64 A.D. — the Great Fire of Rome (day 3)
- 356 B.C. — birth of Alexander the Great (according to one reckoning)
- 1304 — birth of Petrarch