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
He gave up everything which he had held except the fortresses; the
Thessalian towns, which he could not defend, he himself destroyed;
Pherae alone closed its gates against him and thereby escaped
destruction.
The Epirots, induced partly by these successes of the
Roman arms, partly by the judicious moderation of Flamininus, were the
first to secede from the Macedonian alliance. On the first accounts
of the Roman victory the Athamanes and Aetolians immediately invaded
Thessaly, and the Romans soon followed; the open country was easily
overrun, but the strong towns, which were friendly to Macedonia and
received support from Philip, fell only after a brave resistance or
withstood even the superior foe--especially Atrax on the left bank
of the Peneius, where the phalanx stood in the breach as a substitute
for the wall.
Except these Thessalian fortresses and the territory
of the faithful Acarnanians, all northern Greece was thus in the hands
of the coalition.