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
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.
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Reference address : https://www.ellopos.net/elpenor/rome/3-08-second-macedonian-war.asp?pg=51