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
Rome had, moreover, an obligation of honour to fulfil towards Attalus her faithful ally since the first Macedonian war, and had to prevent Philip, who had already besieged him in his capital, from expelling him from his dominions.
Lastly, the claim of Rome to extend her protecting arm over all the Greeks was by no means an empty phrase: the citizens of Neapolis, Rhegium, Massilia, and Emporiae could testify that that protection was meant in earnest, and there is no question at all that at this time the Romans stood in a closer relation to the Greeks than any other nation--one little more remote than that of the Hellenized Macedonians.
It is strange that any should dispute the right of the Romans to feel their human, as well as their Greek, sympathies revolted at the outrageous treatment of the Cians and Thasians.
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Reference address : https://www.ellopos.net/elpenor/rome/3-08-second-macedonian-war.asp?pg=29