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
The most
remarkable feature was the exclusion of appeal to the -comitia
tributa- in capital causes, while the privilege of appeal to the
centuries was guaranteed; which admits of explanation from the
circumstance that the penal jurisdiction was in fact usurped by the
plebs and its presidents,(11) and with the tribunate there necessarily
fell the tribunician capital process, while it was perhaps the
intention to retain the aedilician process of fine (-multa-).
The essential political significance of the measure resided far less
in the contents of the legislation than in the formal obligation now
laid upon the consuls to administer justice according to these forms
of process and these rules of law, and in the public exhibition of
the code, by which the administration of justice was subjected to the
control of publicity and the consul was compelled to dispense equal
and truly common justice to all.