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
On the Roman side there was selected for the conduct of the war in the first rank the consul of 680, Lucius Lucullus, who as governor of Asia and Cilicia was placed at the head of the four legions stationed in Asia Minor and of a fifth brought by him from Italy, and was directed to penetrate with this army, amounting to 30,000 infantry and 1600 cavalry, through Phrygia into the kingdom of Pontus.
His colleague Marcus Cotta proceeded with the fleet and another Roman corps to the Propontis, to cover Asia and Bithynia. Lastly, a general arming of the coasts and particularly of the Thracian coast more immediately threatened by the Pontic fleet, was enjoined; and the task of clearing all the seas and coasts from the pirates and their Pontic allies was, by extraordinary decree, entrusted to a single magistrate, the choice falling on the praetor Marcus Antonius, the son of the man who thirty years before had first chastised the Cilician corsairs.(12)
12. Cf. IV. IV. The Provinces
Moreover, the senate placed at the disposal of Lucullus a sum of 72,000,000 sesterces (700,000 pounds), in order to build a fleet; which, however, Lucullus declined. From all this we see that the Roman government recognized the root of the evil in the neglect of their marine, and showed earnestness in the matter at least so far as their decrees reached.
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Reference address : https://www.ellopos.net/elpenor/rome/5-02-rule-sullan-restoration.asp?pg=27