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
It is
a significant fact, that in these regions the landed and moneyed
aristocracy had from ancient times preponderated and the middle class
had totally disappeared, whereas among and near the Abruzzi the
farmer-class had preserved its purity and vigour better than anywhere
else in Italy: it was from the farmers accordingly and the middle
class in general that the revolt substantially proceeded, whereas the
municipal aristocracy still went hand in hand with the government of
the capital.
This also readily explains the fact, that there were in
the insurgent districts isolated communities, and in the insurgent
communities minorities, adhering to the Roman alliance; the Vestinian
town Pinna, for instance, sustained a severe siege for Rome, and a
corps of loyalists that was formed in the Hirpinian country under
Minatius Magius of Aeclanum supported the Roman operations in Campania.