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
There were not wanting in the senate decided adherents of the capitalist party, among whom in particular a conspicuous place belonged to the consul of the day, Lucius Marcius Philippus, who maintained the cause of the equestrian order as he had formerly maintained that of the democracy(13) with zeal and prudence, and to the daring and reckless Quintus Caepio, who was induced to this opposition primarily by his personal hostility to Drusus and Scaurus.
13. Cf. IV. IV. Administration under the Restoration
More dangerous, however, than these decided opponents was the cowardly and corrupt mass of the aristocracy, who no doubt would have preferred to plunder the provinces alone, but in the end had not much objection to share the spoil with the equites, and, instead of taking in hand the grave and perilous struggle against the haughty capitalists, reckoned it far more equitable and easy to purchase impunity at their hands by fair words and by an occasional prostration or even by a round sum. The result alone could show how far success would attend the attempt to carry along with the movement this body, without which it was impossible to attain the desired end.
Do you see any typos or other mistakes? Please let us know and correct them
Reference address : https://www.ellopos.net/elpenor/rome/4-06-marius-revolution-drusus-reform.asp?pg=44