ante diem xv kalendas sextilias

• Mercatus
• 477 B.C. — 300 members of the gens Fabia die in the battle of the Cremera
• 390 (or 387) B.C. — Gauls defeat the Romans at Allia
• 64 A.D. — the Great Fire of Rome begins
• 69 A.D. — Vitellius is given the titles of Augustus and pontifex maximus
• 1374 — death of Petrarch