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
The former terms, he declared, might have been
accepted, had the army still been before Lysimachia, or even on the
European side of the Hellespont; but they did not suffice now, when
the steed felt the bit and knew its rider. The attempts of the great-
king to purchase peace from his antagonist after the Oriental manner
by sums of money--he offered the half of his year's revenues!--failed
as they deserved; the proud burgess, in return for the gratuitous
restoration of his son who had fallen a captive, rewarded the great-
king with the friendly advice to make peace on any terms.
This was
not in reality necessary: had the king possessed the resolution to
prolong the war and to draw the enemy after him by retreating into the
interior, a favourable issue was still by no means impossible. But
Antiochus, irritated by the presumably intentional arrogance of his
antagonist, and too indolent for any persevering and consistent
warfare, hastened with the utmost eagerness to expose his unwieldy,
but unequal, and undisciplined mass of an army to the shock of the
Roman legions.