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
For years the democracy had striven to raise one of its partisans to the possession of the supreme magistracy, that by way of this bridge it might attain a military power of its own. It had long been clear to discerning men of all shades that the strife of parties could not be settled by civil conflict, but only by military power; but the course of the coalition between the democracy and the powerful military chiefs, through which the rule of the senate had been terminated, showed with inexorable clearness that every such alliance ultimately issued in a subordination of the civil under the military elements, and that the popular party, if it would really rule, must not ally itself with generals properly foreign and even hostile to it, but must make generals of its own leaders themselves.
The attempts made with this view to carry the election of Catilina as consul, and to gain a military support in Spain or Egypt, had failed; now a possibility presented itself of procuring for their most important man the consulship and the consular province in the usual constitutional way, and of rendering themselves independent of their dubious and dangerous ally Pompeius by the establishment, if we may so speak, of a home power in their own democratic household.
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Reference address : https://www.ellopos.net/elpenor/rome/5-06-pompeius-coalition-pretenders.asp?pg=16