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
There are doubtless vague legends, reaching back to times of distant antiquity, about conflicts between Latium and Caere; Mezentius the king of Caere, for instance, is asserted to have obtained great victories over the Latins, and to have imposed upon them a wine-tax; but evidence much more definite than that which attests a former state of feud is supplied by tradition as to an especially close connection between the two ancient centres of commercial and maritime intercourse in Latium and Etruria.
Sure traces of any advance of the Etruscans beyond the Tiber, by land, are altogether wanting. It is true that Etruscans are named in the first ranks of the great barbarian host, which Aristodemus annihilated in 230 under the walls of Cumae;(7) but, even if we regard this account as deserving credit in all its details, it only shows that the Etruscans had taken part in a great plundering expedition.
7. Cf. I. VIII. Their Political Development
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Reference address : https://www.ellopos.net/elpenor/rome/1-09-etruscans.asp?pg=11