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
In every respect the decisive voice lay with Caesar. He used it to re-establish and consolidate the existing joint rule on a new basis of more equal distribution of power of most importance in a military point of view, next to that of the two Gauls, were assigned to his two colleagues--that of the two Spains to Pompeius, that of Syria to Crassus; and these offices were to be secured to them by decree of the people for five years (700-704), and to be suitably provided for in a military and financial point of view. On the other hand Caesar stipulated for the prolongation of his command, which expired with the year 700, to the close of 705, as well as for the prerogative of increasing his legions to ten and of charging the pay for the troops arbitrarily levied by him on the state-chest.
Pompeius and Crassus were moreover promised a second consulship for the next year (699) before they departed for their governorships, while Caesar kept it open to himself to administer the supreme magistracy a second time after the termination of his governorship in 706, when the ten years' interval legally requisite between two consulships should have in his case elapsed. The military support, which Pompeius and Crassus required for regulating the affairs of the capital all the more that the legions of Caesar originally destined for this purpose could not now be withdrawn from Transalpine Gaul, was to be found in new legions, which they were to raise for the Spanish and Syrian armies and were not to despatch from Italy to their several destinations until it should seem to themselves convenient to do so.
The main questions were thus settled; subordinate matters, such as the settlement of the tactics to be followed against the opposition in the capital, the regulation of the candidatures for the ensuing years, and the like, did not long detain them. The great master of mediation composed the personal differences which stood in the way of an agreement with his wonted ease, and compelled the most refractory elements to act in concert. An understanding befitting colleagues was reestablished, externally at least, between Pompeius and Crassus. Even Publius Clodius was induced to keep himself and his pack quiet, and to give no farther annoyance to Pompeius--not the least marvellous feat of the mighty magician.
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Reference address : https://www.ellopos.net/elpenor/rome/5-08-pompeius-caesar.asp?pg=25