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
Greater success attended the application of Mithradates to the peoples of the east than to the kings. It was not difficult to represent the war as a national one of the east against the west, for such it was; it might very well be made a religious war also, and the report might be spread that the object aimed at by the army of Lucullus was the temple of the Persian Nanaea or Anaitis in Elymais or the modern Luristan, the most celebrated and the richest shrine in the whole region of the Euphrates.(17)
17. Cicero (De Imp. Pomp. 9, 23) hardly means any other than one of the rich temples of the province Elymais, whither the predatory expeditions of the Syrian and Parthian kings were regularly directed (Strabo, xvi. 744; Polyb, xxxi. 11. 1 Maccab. 6, etc.), and probably this as the best known; on no account can the allusion be to the temple of Comana or any shrine at all in the kingdom of Pontus.
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Reference address : https://www.ellopos.net/elpenor/rome/5-02-rule-sullan-restoration.asp?pg=51