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
But even in the midst of such
patriotic endeavours, which from a police point of view were entirely
in order, the poet interrupts himself;
-Sed sumne ego stultus, qui rem curo publicam
Ubi sunt magistratus, quos curare oporteat?-
and taken as a whole, we can hardly imagine a comedy politically more
tame than was that of Rome in the sixth century.(22)
22. For this reason we can hardly be too cautious in assuming
allusions on the part of Plautus to the events of the times. Recent
investigation has set aside many instances of mistaken acuteness of
this sort; but might not even the reference to the Bacchanalia,
which is found in Cas. v. 4, 11 (Ritschl, Parerg. 1. 192), have been
expected to incur censure? We might even reverse the case and infer
from the notices of the festival of Bacchus in the -Casina-, and some
other pieces (Amph. 703; Aul. iii. i, 3; Bacch. 53, 371; Mil. Glor.
1016; and especially Men. 836), that these were written at a time
when it was not yet dangerous to speak of the Bacchanalia.