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
His
treatise --the "-Tripartita-" as it was called--was a work on the
Twelve Tables, which appended to each sentence of the text an
explanation--chiefly, doubtless, of the antiquated and unintelligible
expressions--and the corresponding formula of action. While this
process of glossing undeniably indicated the influence of Greek
grammatical studies, the portion treating of the formulae of action,
on the contrary, was based on the older collection of Appius(69)
and on the whole system of procedure developed by national usage
and precedent.
The state of science generally at this epoch is very distinctly
exhibited in the collection of those manuals composed by Cato for his
son which, as a sort of encyclopaedia, were designed to set forth in
short maxims what a "fit man" (-vir bonus-) ought to be as orator,
physician, husbandman, warrior, and jurist. A distinction was not yet
drawn between the propaedeutic and the professional study of science;
but so much of science generally as seemed necessary or useful was
required of every true Roman.