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 latter demands came into collision with the law. Pompeius, although several times invested in an extraordinary way with supreme official authority, had not yet administered any ordinary magistracy, not even the quaestorship, and was still not a member of the senate; and none but one who had passed through the round of lesser ordinary magistracies could become consul, none but one who had been invested with the ordinary supreme power could triumph. The senate was legally entitled, if he became a candidate for the consulship, to bid him begin with the quaestorship; if he requested a triumph, to remind him of the great Scipio, who under like circumstances had renounced his triumph over conquered Spain.
Nor was Pompeius less dependent constitutionally on the good will of the senate as respected the lands promised to his soldiers. But, although the senate--as with its feebleness even in animosity was very conceivable--should yield those points and concede to the victorious general, in return for his executioner's service against the democratic chiefs, the triumph, the consulate, and the assignations of land, an honourable annihilation in senatorial indolence among the long series of peaceful senatorial Imperators was the most favourable lot which the oligarchy was able to hold in readiness for the general of thirty-six.
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Reference address : https://www.ellopos.net/elpenor/rome/5-03-fall-oligarchy-pompeius.asp?pg=8