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 moderate Optimates declared themselves for the Manilian proposal, because after the Gabinian law resistance in any case was vain, and far-seeing men already perceived that the true policy for the senate was to make approaches as far as possible to Pompeius and to draw him over to their side on occasion of the breach which might be foreseen between him and the democrats. Lastly the trimmers blessed the day when they too seemed to have an opinion and could come forward decidedly without losing favour with either of the parties-- it is significant that Marcus Cicero first appeared as an orator on the political platform in defence of the Manilian proposal.
The strict Optimates alone, with Quintus Catulus at their head, showed at least their colours and spoke against the proposition. Of course it was converted into law by a majority bordering on unanimity. Pompeius thus obtained, in addition to his earlier extensive powers, the administration of the most important provinces of Asia Minor-- so that there scarcely remained a spot of land within the wide Roman bounds that had not to obey him--and the conduct of a war as to which, like the expedition of Alexander, men could tell where and when it began, but not where and when it might end. Never since Rome stood had such power been united in the hands of a single man.
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Reference address : https://www.ellopos.net/elpenor/rome/5-03-fall-oligarchy-pompeius.asp?pg=37