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
Diplomatic Intervention of Rome
In fact a storm was gathering against Philip in the west, which did not permit him to continue the plundering of defenceless Egypt. The Romans, who had at length in this year concluded peace on their own terms with Carthage, began to give serious attention to these complications in the east. It has often been affirmed, that after the conquest of the west they forthwith proceeded to the subjugation of the east; a serious consideration will lead to a juster judgment.
It is only dull prejudice which fails to see that Rome at this period by no means grasped at the sovereignty of the Mediterranean states, but, on the contrary, desired nothing further than to have neighbours that should not be dangerous in Africa and in Greece; and Macedonia was not really dangerous to Rome. Its power certainly was far from small, and it is evident that the Roman senate only consented with reluctance to the peace of 548-9, which left it in all its integrity; but how little any serious apprehensions of Macedonia were or could be entertained in Rome, is best shown by the small number of troops--who yet were never compelled to fight against a superior force--with which Rome carried on the next war.
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Reference address : https://www.ellopos.net/elpenor/rome/3-08-second-macedonian-war.asp?pg=27