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
States of Asia Minor
In Asia Cappadocia adhered to the great-king; Prusias of Bithynia on the other hand took, as always, the side of the stronger. King Eumenes remained faithful to the old policy of his house, which was now at length to yield to him its true fruit. He had not only persistently refused |the offers of Antiochus, but had constantly urged the Romans to a war, from which he expected the aggrandizement of his kingdom. The Rhodians and Byzantines likewise joined their old allies. Egypt too took the side of Rome and offered support in supplies and men; which, however, the Romans did not accept.
In Europe the result mainly depended on the position which Philip of Macedonia would take up. It would have been perhaps the right policy for him, notwithstanding all the injuries or shortcomings of the past, to unite with Antiochus. But Philip was ordinarily influenced not by such considerations, but by his likings and dislikings; and his hatred was naturally directed much more against the faithless ally, who had left him to contend alone with the common enemy, had sought merely to seize his own share in the spoil, and had become a burdensome neighbour to him in Thrace, than against the conqueror, who had treated him respectfully and honourably. Antiochus had, moreover, given deep offence to the hot temper of Philip by the setting up of absurd pretenders to the Macedonian crown, and by the ostentatious burial of the Macedonian bones bleaching at Cynoscephalae. Philip therefore placed his whole force with cordial zeal at the disposal of the Romans.
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Reference address : https://www.ellopos.net/elpenor/rome/3-09-war-antiochus-asia.asp?pg=17