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
Philip, on learning this, voluntarily abandoned his position and
retreated in an easterly direction: whether he did so in order to
repel the probably unexpected invasion of the Aetolians, or to draw
the Roman army after him with a view to its destruction, or to take
either of these courses according to circumstances, cannot well be
determined.
He managed his retreat so dexterously that Galba, who
adopted the rash resolution of following him, lost his track, and
Philip was enabled to reach by a flank movement, and to occupy, the
narrow pass which separates the provinces of Lyncestis and Eordaea,
with the view of awaiting the Romans and giving them a warm reception
there.
A battle took place on the spot which he had selected; but the
long Macedonian spears proved unserviceable on the wooded and uneven
ground. The Macedonians were partly turned, partly broken, and lost
many men.
