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
At the elections for 701 the opposition succeeded in so indisputably convicting the candidates of the regents, along with others, of the most shameful electioneering intrigues that the regents, on whom the scandal recoiled, could not do otherwise than abandon them. These repeated and severe defeats of the dynasts on the battle-field of the elections may be traceable in part to the unmanageableness of the rusty machinery, to the incalculable accidents of the polling, to the opposition at heart of the middle classes, to the various private considerations that interfere in such cases and often strangely clash with those of party; but the main cause lies elsewhere.
The elections were at this time essentially in the power of the different clubs into which the aristocracy had grouped themselves; the system of bribery was organized by them on the most extensive scale and with the utmost method. The same aristocracy therefore, which was represented in the senate, ruled also the elections; but while in the senate it yielded with a grudge, it worked and voted here--in secret and secure from all reckoning--absolutely against the regents. That the influence of the nobility in this field was by no means broken by the strict penal law against the electioneering intrigues of the clubs, which Crassus when consul in 699 caused to be confirmed by the burgesses, is self-evident, and is shown by the elections of the succeeding years.
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Reference address : https://www.ellopos.net/elpenor/rome/5-08-pompeius-caesar.asp?pg=42