Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
The African Expedition of Scipio
Nobody probably in the Roman senate doubted either that the war on the part of Carthage against Rome was at an end, or that the war on the part of Rome against Carthage must now be begun; but unavoidable as was the expedition to Africa, they were afraid to enter on its preparation. They required for it, above all, an able and beloved leader; and they had none. Their best generals had either fallen in the field of battle, or they were, like Quintus Fabius and Quintus Fulvius, too old for such an entirely new and probably tedious war.
The victors of Sena, Gaius Nero and Marcus Livius, would perhaps have been equal to the task, but they were both in the highest degree unpopular aristocrats; it was doubtful whether they would succeed in procuring the command--matters had already reached such a pass that ability, as such, determined the popular choice only in times of grave anxiety--and it was more than doubtful whether these were the men to stimulate the exhausted people to fresh exertions. At length Publius Scipio returned from Spain, and the favourite of the multitude, who had so brilliantly fulfilled, or at any rate seemed to have fulfilled, the task with which it had entrusted him, was immediately chosen consul for the next year.
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Reference address : https://www.ellopos.net/elpenor/rome/3-06-war-hannibal-cannae-zama.asp?pg=78