Ab urbe condita

Titus Livius (Livy)

Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.

They assert that the enemy's army amounted to 1,000,000 infantry and 46,000 cavalry, together with 1000 war chariots. That, of course, includes the Umbrians and Tuscans who are represented as taking part in the battle.

And by way of increasing the Roman strength they tell us that Lucius Volumnius commanded in the action as well as the consuls, and that their legions were supplemented by his army.