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 was peculiarly marked by that inventive craftiness, which forms one of the leading traits of the Phoenician character; he was fond of taking singular and unexpected routes; ambushes and stratagems of all sorts were familiar to him; and he studied the character of his antagonists with unprecedented care.
By an unrivalled system of espionage--he had regular spies even in Rome--he kept himself informed of the projects of the enemy; he himself was frequently seen wearing disguises and false hair, in order to procure information on some point or other. Every page of the history of this period attests his genius in strategy; and his gifts as a statesman were, after the peace with Rome, no less conspicuously displayed in his reform of the Carthaginian constitution, and in the unparalleled influence which as a foreign exile he exercised in the cabinets of the eastern powers.
The power which he wielded over men is shown by his incomparable control over an army of various nations and many tongues--an army which never in the worst times mutinied against him. He was a great man; wherever he went, he riveted the eyes of all.
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Reference address : https://www.ellopos.net/elpenor/rome/3-04-hamilcar-hannibal.asp?pg=24