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
Instead of Rome providing for the fleet, as she had bound herself to do, exclusively with her own blood and treasure and with those of the client states which had remained formally sovereign, the senate allowed the Italian war-marine to fall into decay, and learned to make shift with the vessels which the several mercantile towns were required to furnish, or still more frequently with the coast-guards everywhere organized--all the cost and burden falling, in either case, on the subjects.
The provincials might deem themselves fortunate, if their Roman governor applied the requisitions which he raised for the defence of the coast in reality solely to that object, and did not intercept them for himself; or if they were not, as very frequently happened, called on to pay ransom for some Roman of rank captured by the buccaneers.
Measures undertaken perhaps with judgment, such as the occupation of Cilicia in 652, were sure to be spoilt in the execution. Any Roman of this period, who was not wholly carried away by the current intoxicating idea of the national greatness, must have wished that the ships' beaks might be torn down from the orator's platform in the Forum, that at least he might not be constantly reminded by them of the naval victories achieved in better times.
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Reference address : https://www.ellopos.net/elpenor/rome/5-02-rule-sullan-restoration.asp?pg=12