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
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.
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Reference address : https://www.ellopos.net/elpenor/rome/3-09-war-antiochus-asia.asp?pg=32