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
In Thrace the interior remained under
Macedonian protection, but nothing was fixed as to the coast towns
and the islands of Thasos and Lemnos which were -de facto- in Philip's
hands, while the Chersonese was even expressly given to Eumenes; and
it was not difficult to see that Eumenes received possessions in
Europe, simply that he might in case of need keep not only Asia but
Macedonia in check.
The exasperation of the proud and in many
respects chivalrous king was natural; it was not chicane, however,
but an unavoidable political necessity that induced the Romans to take
this course. Macedonia suffered for having once been a power of the
first rank, and for having waged war on equal terms with Rome; there
was much better reason in her case than in that of Carthage for
guarding against the revival of her old powerful position.