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
He had to choose one of two courses; either to throw garrisons into the wavering towns, in which case he would weaken still more his army already too weak and would expose his trusty troops to destruction in small divisions or to treachery--500 of his select Numidian horsemen were put to death in this way in 544 on the defection of the town of Salapia; or to pull down and burn the towns which could not be depended on, so as to keep them out of the enemy's hands--a course, which could not raise the spirits of his Italian clients.
On the fall of Capua the Romans felt themselves once more confident as to the final issue of the war in Italy; they despatched considerable reinforcements to Spain, where the existence of the Roman army was placed in jeopardy by the fall of the two Scipios; and for the first time since the beginning of the war they ventured on a diminution in the total number of their troops, which had hitherto been annually augmented notwithstanding the annually-increasing difficulty of levying them, and had risen at last to 23 legions.
Accordingly in the next year (544) the Italian war was prosecuted more remissly than hitherto by the Romans, although Marcus Marcellus had after the close of the Sicilian war resumed the command of the main army; he applied himself to the besieging of fortresses in the interior, and had indecisive conflicts with the Carthaginians. The struggle for the Acropolis of Tarentum also continued without decisive result. In Apulia Hannibal succeeded in defeating the proconsul Gnaeus Fulvius Centumalus at Herdoneae.
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Reference address : https://www.ellopos.net/elpenor/rome/3-06-war-hannibal-cannae-zama.asp?pg=63