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
We may regard as an appendix to these criminal laws the police
ordinances, by which Sulla, putting the law in place of the censor,
again enforced good discipline and strict manners, and, by
establishing new maximum rates instead of the old ones which
had long been antiquated, attempted to restrain luxury at banquets,
funerals, and otherwise.
The Roman Municipal System
Lastly, the development of an independent Roman municipal system
was the work, if not of Sulla, at any rate of the Sullan epoch.
The idea of organically incorporating the community as a subordinate
political unit in the higher unity of the state was originally
foreign to antiquity; the despotism of the east knew nothing of urban
commonwealths in the strict sense of the word, and city and state
were throughout the Graeco-Italic world necessarily coincident.
In so far there was no proper municipal system from the outset either
in Greece or in Italy.