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
It does not even appear that Sulla now resumed the previously attempted restoration of the Servian voting-arrangement;(21) whether it was that he regarded the particular composition of the voting- divisions as altogether a matter of indifference, or whether it was that this older arrangement seemed to him to augment the dangerous influence of the capitalists.
21. Cf. IV. VII. Legislation of Sulla
Only the qualifications were restored and partially raised. The limit of age requisite for the holding of each office was enforced afresh; as was also the enactment that every candidate for the consulship should have previously held the praetorship, and every candidate for the praetorship should have previously held the quaestorship, whereas the aedileship was allowed to be passed over. The various attempts that had been recently made to establish a -tyrannis- under the form of a consulship continued for several successive years led to special rigour in dealing with this abuse; and it was enacted that at least two years should elapse between the holding of one magistracy and the holding of another, and at least ten years should elapse before the same office could be held a second time.
In this latter enactment the earlier ordinance of 412 (22) was revived, instead of the absolute prohibition of all re-election to the consulship, which had been the favourite idea of the most recent ultra-oligarchical epoch.(23)
22. Cf. II. III. Restrictions As to the Accumulation and the Reoccupation of Offices
23. Cf. IV. II. Attempts at Reform
On the whole, however, Sulla left the elections to take their course, and sought merely to fetter the power of the magistrates in such a way that--let the incalculable caprice of the comitia call to office whomsoever it might--the person elected should not be in a position to rebel against the oligarchy.
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Reference address : https://www.ellopos.net/elpenor/rome/4-10-sullan-constitution.asp?pg=28