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
All these works, while not coming up to the Greek conception of
history,(58) were, as contrasted with the mere detached notices of
the book of Annals, systematic histories with a connected narrative
and a more or less regular structure.
58. It is evidently by way of contrast with Fabius that Polybius
(xl. 6, 4) calls attention to the fact, that Albinus, madly fond of
everything Greek, had given himself the trouble of writing history
systematically [--pragmatiken iotorian--].
They all, so far as we can see,
embraced the national history from the building of Rome down to the
time of the writer, although in point of title the work of Naevius
related only to the first war with Carthage, and that of Cato only
to the very early history. They were thus naturally divided into
the three sections of the legendary period, of earlier, and of
contemporary, history.
