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
On all hands the small trading stations of the Phoenicians gave way before the more energetic colonization of the Greeks. Selinus (126) and Agrigentum (174) were founded in western Sicily; the more remote western sea was traversed, Massilia was built on the Celtic coast (about 150), and the shores of Spain were explored, by the bold Phocaeans from Asia Minor.
But about the middle of the second century the progress of Greek colonization was suddenly arrested; and there is no doubt that the cause of this arrest was the contemporary rapid rise of Carthage, the most powerful of the Phoenician cities in Libya--a rise manifestly due to the danger with which Greek aggression threatened the whole Phoenician race.
If the nation which had opened up maritime commerce on the Mediterranean had been already dislodged by its younger rival from the sole command of the western half, from the possession of both lines of communication between the eastern and western basins of the Mediterranean, and from the monopoly of the carrying trade between east and west, the sovereignty at least of the seas to the west of Sardinia and Sicily might still be saved for the Orientals; and to its maintenance Carthage applied all the tenacious and circumspect energy peculiar to the Aramaean race.
Phoenician colonization and Phoenician resistance assumed an entirely different character. The earlier Phoenician settlements, such as those in Sicily described by Thucydides, were mercantile factories: Carthage subdued extensive territories with numerous subjects and powerful fortresses. Hitherto the Phoenician settlements had stood isolated in opposition to the Greeks; now the powerful Libyan city centralized within its sphere the whole warlike resources of those akin to it in race with a vigour to which the history of the Greeks can produce nothing parallel.
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Reference address : https://www.ellopos.net/elpenor/rome/1-10-greeks-italy-tuscans-carthaginians.asp?pg=29