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
Phoenicians and Italians in Opposition to the Greeks
Perhaps the element in this reaction which exercised the most momentous influence in the sequel was the close relation into which the weaker Phoenicians entered with the natives of Sicily and Italy in order to resist the Greeks.
When the Cnidians and Rhodians made an attempt about 175 to establish themselves at Lilybaeum, the centre of the Phoenician settlements in Sicily, they were expelled by the natives--the Elymi of Segeste--in concert with the Phoenicians. When the Phocaeans settled about 217 at Alalia (Aleria) in Corsica opposite to Caere, there appeared for the purpose of expelling them a combined fleet of Etruscans and Carthaginians, numbering a hundred and twenty sail; and although in the naval battle that ensued--one of the earliest known in history-the fleet of the Phocaeans, which was only half as strong, claimed the victory, the Carthaginians and Etruscans gained the object which they had in view in the attack; the Phocaeans abandoned Corsica, and preferred to settle at Hyde (Velia) on the less exposed coast of Lucania.
A treaty between Etruria and Carthage not only established regulations regarding the import of goods and the giving due effect to rights, but included also an alliance-in-arms (--summachia--), the serious import of which is shown by that very battle of Alalia. It is a significant indication of the position of the Caerites, that they stoned the Phocaean captives in the market at Caere and then sent an embassy to the Delphic Apollo to atone for the crime.
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Reference address : https://www.ellopos.net/elpenor/rome/1-10-greeks-italy-tuscans-carthaginians.asp?pg=30