Titus Livius (Livy), The History of Rome, Book 34
Cyrus Evans, Ed.

46. In Gaul, Lucius Valerius Flaccus, proconsul, in a pitched battle near Mediolanum, completely overthrew the Insubrian Gauls, and the Boians; who, under the command of Dorulacus, had crossed the Po, to rouse the Insubrians to arms. Ten thousand of the enemy were slain. [2] About this time his colleague, Marcus Porcius Cato, triumphed over Spain. He carried in the procession twenty-five thousand pounds' weight of unwrought silver, one hundred and three thousand silver denarii,¹ five hundred and forty of Oscan silver,² and one thousand four hundred pounds' weight of gold. Out of the booty, he distributed to each of his soldiers two hundred and seventy asses;³ and three times that amount to each horseman. [3] Tiberius Sempronius, consul, proceeding to his province, led his legions, first, into the territory of the Boians. [4] At this time Boiorix their chieftain, with his two brothers, after having drawn out the whole nation into the field to renew the war, pitched his camp in the open country, that it might be evident that he was prepared to fight in [p. 1537]case the enemy should pass the frontiers. [5] When the consul understood what a numerous force and what a degree of resolution the enemy had, he sent an express to his colleague, requesting him, “if he thought proper, to hasten to join him;” adding, that “he would act on the defensive, and defer engaging in battle, until his arrival.” [6] The same reason which made the consul wish to decline an action, induced the Gauls, whose spirits were raised by the backwardness of their antagonists, to bring it on as soon as possible, that they might finish the affair before the two consuls should unite their forces. [7] However, during two days, they did nothing more than stand in readiness for battle, if any should come out against them. On the third, they advanced furiously to the rampart, and assaulted the camp on every side at once. [8] The consul immediately ordered his men to take arms, and kept them quiet, under arms, for some time; both to add to the foolish confidence of the enemy, and to arrange his troops at the gates, through which each party was to sally out. [9] The two legions were ordered to march by the two principal gates; but, in the very pass of the gates, the Gauls opposed them in such close bodies as to stop up the way. [10] The fight was maintained a long time in these narrow passes; nor were their hands or swords much employed in the business, but pushing with their shields and bodies, they pressed against each other, the Romans struggling to force their [11??] standards beyond the gates, the Gauls, to break into the camp, or, at least, to hinder the Romans from issuing forth. [12] However, neither party could make the least impression on the other, until Quintus Victorius, a first centurion, and Caius Atinius, a military tribune, the former of the second, the latter of the fourth legion, had taken a course often tried in desperate conflicts; snatching the standards from the officers who carried them, and throwing them among the enemy. [13] In the struggle to recover the standards, the men of the second legion first made their way out of the gate.