Roman Kingdom
Gauls destroyed many of Rome's historical records
Allia River, near Rome
The Gauls destroyed many of Rome's historical records when they sacked the city after the Battle of the Allia in 390 BC (according to Varro; according to Polybius, the battle occurred in 387/6), and what remained eventually fell prey to time or to theft. With no contemporary records of the kingdom surviving, all accounts of the Roman kings must be carefully questioned.