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
War with the Pirates
The maritime war against the pirates, which began at the same time with the continental war and was all along most closely connected with it, yielded no better results. It has been already mentioned (20) that the senate in 680 adopted the judicious resolution to entrust the task of clearing the seas from the corsairs to a single admiral in supreme command, the praetor Marcus Antonius. But at the very outset they had made an utter mistake in the choice of the leader; or rather those, who had carried this measure so appropriate in itself, had not taken into account that in the senate all personal questions were decided by the influence of Cethegus(21) and similar coterie-considerations.
20. Cf. V. II. Roman Preparations
21. Cf. V. I. Want of Leaders
They had moreover neglected to furnish the admiral of their choice with money and ships in a manner befitting his comprehensive task, so that with his enormous requisitions he was almost as burdensome to the provincials whom he befriended as were the corsairs.
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Reference address : https://www.ellopos.net/elpenor/rome/5-02-rule-sullan-restoration.asp?pg=62