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
They avoided war even with their rivals; they allowed themselves to be supplanted in Egypt, Greece, Italy, and the east of Sicily almost without resistance; and in the great naval battles, which were fought in early times for the supremacy of the western Mediterranean, at Alalia (217) and at Cumae (280), it was the Etruscans, and not the Phoenicians, that bore the brunt of the struggle with the Greeks. If rivalry could not be avoided, they compromised the matter as best they could; no attempt was ever made by the Phoenicians to conquer Caere or Massilia.
Still less, of course, were the Phoenicians disposed to enter on aggressive war. On the only occasion in earlier times when they took the field on the offensive--in the great Sicilian expedition of the African Phoenicians which ended in their defeat at Himera by Gelo of Syracuse (274)--it was simply as dutiful subjects of the great-king and in order to avoid taking part in the campaign against the Greeks of the east, that they entered the lists against the Greeks of the west; just as their Syrian kinsmen were in fact obliged in that same year to share the defeat of the Persians at Salamis(1).
1. Cf. II. IV. Victories of Salamis and Himera, and Their Effects
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Reference address : https://www.ellopos.net/elpenor/rome/3-01-carthage.asp?pg=6