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
His residence Cirta (Constantine) became the stirring capital of a powerful state, and a chief seat of Phoenician civilization, which was zealously fostered at the court of the Berber king--fostered perhaps studiously with a view to the future Carthagino-Numidian kingdom. The hitherto degraded Libyan nationality thus rose in its own estimation, and the native manners and language made their way even into the old Phoenician towns, such as Great Leptis.
The Berber began, under the aegis of Rome, to feel himself the equal or even the superior of the Phoenician; Carthaginian envoys at Rome had to submit to be told that they were aliens in Africa, and that the land belonged to the Libyans. The Phoenico-national civilization of North Africa, which still retained life and vigour even in the levelling times of the Empire, was far more the work of Massinissa than of the Carthaginians.
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Reference address : https://www.ellopos.net/elpenor/rome/3-07-peace-hannibal-third-period.asp?pg=24