C. Julius Caesar, Gallic War

Noviodunum was a town of the Aedui, advantageously situated on the banks of the Loire . Caesar had conveyed hither all the hostages of Gaul, the corn, public money, a great part of his own baggage and that of his army; he had sent hither a great number of horses, which he had purchased in Italy and Spain on account of this war. When Eporedirix and Viridomarus came to this place, and received information of the disposition of the state, that Litavicus had been admitted by the Aedui into Bibracte , which is a town of the greatest importance among them, that Convictolitanis the chief magistrate and a great part of the senate had gone to meet him, that embassadors had been publicly sent to Vercingetorix to negotiate a peace and alliance; they thought that so great an opportunity ought not to be neglected. Therefore, having put to the sword the garrison of Noviodunum , and those who had assembled there for the purpose of trading or were on their march, they divided the money and horses among themselves; they took care that the hostages of the [different] states should be brought to Bibracte , to the chief magistrate; they burned the town to prevent its being of any service to the Romans, as they were of opinion that they could not hold it; they carried away in their vessels whatever corn they could in the hurry, they destroyed the remainder, by [throwing it] into the river or setting it on fire, they themselves began to collect forces from the neighboring country, to place guards and garrisons in different positions along the banks of the Loire , and to display the cavalry on all sides to strike terror into the Romans, [to try] if they could cut them off from a supply of provisions. In which expectation they were much aided, from the circumstance that the Loire had swollen to such a degree from the melting of the snows, that it did not seem capable of being forded at all.