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
It was against Quintus Caepio that their attacks were first directed; and justly, in so far as he had primarily occasioned the defeat of Arausio by his insubordination, even apart from the probably well-founded but not proved charge of embezzling the Tolosan booty; but the fury which the opposition displayed against him was essentially augmented by the fact, that he had as consul ventured on an attempt to wrest the posts of jurymen from the capitalists.(22)
22. Cf. IV. IV. The Proletariate and Equestrian Order under the Restoration
On his account the old venerable principle, that the sacredness of the magistracy should be respected even in the person of its worst occupant, was violated; and, while the censure due to the author of the calamitous day of Cannae had been silently repressed within the breast, the author of the defeat of Arausio was by decree of the people unconstitutionally deprived of his proconsulship, and--what had not occurred since the crisis in which the monarchy had perished--his property was confiscated to the state-chest (649?).
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Reference address : https://www.ellopos.net/elpenor/rome/4-05-peoples-north.asp?pg=38