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
His own associates were in despair at this insane fury; Sertorius adjured the consul to put a stop to it at any price, and even Cinna was alarmed. But in times such as these were, madness itself becomes a power; man hurls himself into the abyss, to save himself from giddiness. It was not easy to restrain the furious old man and his band, and least of all had Cinna the courage to do so; on the contrary, he chose Marius as his colleague in the consulship for the next year.
The reign of terror alarmed the more moderate of the victors not much less than the defeated party; the capitalists alone were not displeased to see that another hand lent itself to the work of thoroughly humbling for once the haughty oligarchs, and that at the same time, in consequence of the extensive confiscations and auctions, the best part of the spoil came to themselves--in these times of terror they acquired from the people the surname of the "hoarders."
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Reference address : https://www.ellopos.net/elpenor/rome/4-09-cinna-sulla.asp?pg=18