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 senate should in their opinion cause this magistrate, now that the subjugation of Gaul was ended, to discharge immediately the soldiers who had served out their time. The cases in which Caesar had bestowed burgess-rights and established colonies in Upper Italy were described by them as unconstitutional and null; in further illustration of which Marcellus ordained that a respected senator of the Caesarian colony of Comum, who, even if that place had not burgess but only Latin rights, was entitled to lay claim to Roman citizenship,(17) should receive the punishment of scourging, which was admissible only in the case of non-burgesses.
17. Cf. V. VIII. The Senate under the Monarchy
The supporters of Caesar at this time--among whom Gaius Vibius Pansa, who was the son of a man proscribed by Sulla but yet had entered on a political career, formerly an officer in Caesar's army and in this year tribune of the people, was the most notable-- affirmed in the senate that both the state of things in Gaul and equity demanded not only that Caesar should not be recalled before the time, but that he should be allowed to retain the command along with the consulship; and they pointed beyond doubt to the facts, that a few years previously Pompeius had just in the same way combined the Spanish governorships with the consulate, that even at the present time, besides the important office of superintending the supply of food to the capital, he held the supreme command in Italy in addition to the Spanish, and that in fact the whole men capable of arms had been sworn in by him and had not yet been released from their oath.
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Reference address : https://www.ellopos.net/elpenor/rome/5-09-crassus-joint-rulers.asp?pg=38