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
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.
