Book 6
18
AN oath was regarded and kept by the Romans as something inviolable and sacred. This is evident from many of their customs and laws, and this tale which I shall tell may be regarded as no slight support of the truth of the statement. After the battle of Cannae Hannibal, commander of the Carthaginians, selected ten Roman prisoners and sent them to the city, instructing them and agreeing that, if it seemed good to the Roman people, there should be an exchange of prisoners, and that for each captive that one side should receive in excess of the other side, there should be paid a pound and a half of silver. Before they left, he compelled them to take oath that they would return to the Punic camp, if the Romans would not agree to an exchange.
