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
Mago in Italy
Mago, the youngest son of Hamilcar, set himself to his task more earnestly. With the remains of the Spanish army, which he had conducted in the first instance to Minorca, he landed in 549 at Genoa, destroyed the city, and summoned the Ligurians and Gauls to arms. Gold and the novelty of the enterprise led them now, as always, to come to him in troops; he had formed connections even throughout Etruria, where political prosecutions never ceased.
But the troops which he had brought with him were too few for a serious enterprise against Italy proper; and Hannibal likewise was much too weak, and his influence in Lower Italy had fallen much too low, to permit him to advance with any prospect of success. The rulers of Carthage had not been willing to save their native country, when its salvation was possible; now, when they were willing, it was possible no longer.
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Reference address : https://www.ellopos.net/elpenor/rome/3-06-war-hannibal-cannae-zama.asp?pg=77