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
Quarrel between the Government and Their General Pompeius
But this state of matters so favourable to the government was altered, when the differences became more distinctly developed which subsisted between it and those of its partisans, whose hopes aspired to higher objects than the seat of honour in the senate and the aristocratic villa. In the first rank of these stood Gnaeus Pompeius. He was doubtless a Sullan; but we have already shown(2) how little he was at home among his own party, how his lineage, his past history, his hopes separated him withal from the nobility as whose protector and champion he was officially regarded.
2. Cf. V. I. Pompeius
The breach already apparent had been widened irreparably during the Spanish campaigns of the general (677-683). With reluctance and semi-compulsion the government had associated him as colleague with their true representative Quintus Metellus; and in turn he accused the senate, probably not without ground, of having by its careless or malicious neglect of the Spanish armies brought about their defeats and placed the fortunes of the expedition in jeopardy. Now he returned as victor over his open and his secret foes, at the head of an army inured to war and wholly devoted to him, desiring assignments of land for his soldiers, a triumph and the consulship for himself.
Do you see any typos or other mistakes? Please let us know and correct them
Reference address : https://www.ellopos.net/elpenor/rome/5-03-fall-oligarchy-pompeius.asp?pg=7