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
Macedonia was silent; it was not in a condition to protest in arms, and disdained to do so in words. No resistance was encountered. Nevertheless Rome, by seizing the keys to her neighbour's house, had converted that neighbour into an adversary who, should he recover his power, or should a favourable opportunity occur, might be expected to know how to break the silence.
Had the energetic and prudent king Antigonus Doson lived longer, he would have doubtless taken up the gauntlet which the Romans had flung down, for, when some years afterwards the dynast Demetrius of Pharos withdrew from the hegemony of Rome, prosecuted piracy contrary to the treaty in concert with the Istrians, and subdued the Atintanes whom the Romans had declared independent, Antigonus formed an alliance with him, and the troops of Demetrius fought along with the army of Antigonus at the battle of Sellasia (532).
But Antigonus died (in the winter 533-4); and his successor Philip, still a boy, allowed the Consul Lucius Aemilius Paullus to attack the ally of Macedonia, to destroy his capital, and to drive him from his kingdom into exile (535).
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Reference address : https://www.ellopos.net/elpenor/rome/3-03-extension-italy.asp?pg=25