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 upright Cato indeed showed that strictly the Rhodians had committed no offence and asked whether the Romans were desirous to undertake the punishment of wishes and thoughts, and whether they could blame the nations for being apprehensive that Rome might allow herself all license if she had no longer any one to fear? His words and warnings were in vain. The senate deprived the Rhodians of their possessions on the mainland, which yielded a yearly produce of 120 talents (29,000 pounds). Still heavier were the blows aimed at the Rhodian commerce.
The very prohibition of the import of salt to, and of the export of shipbuilding timber from, Macedonia appears to have been directed against Rhodes. Rhodian commerce was still more directly affected by the erection of the free port at Delos; the Rhodian customs-dues, which hitherto had produced 1,000,000 drachmae (41,000 pounds) annually, sank in a very brief period to 150,000 drachmae (6180 pounds).
Generally, the Rhodians were paralyzed in their freedom of action and in their liberal and bold commercial policy, and the state began to languish. Even the alliance asked for was at first refused, and was only renewed in 590 after urgent entreaties. The equally guilty but powerless Cretans escaped with a sharp rebuke.
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Reference address : https://www.ellopos.net/elpenor/rome/3-10-third-macedonian-war.asp?pg=45