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
Recitative poetry also took its rise during this epoch at Rome.
Livius naturalized the custom which among the ancients held the
place of our modern publication--the public reading of new works by
the author--in Rome, at least to the extent of reciting them in his
school. As poetry was not in this instance practised with a view to
a livelihood, or at any rate not directly so, this branch of it was
not regarded by public opinion with such disfavour as writing for the
stage: towards the end of this epoch one or two Romans of quality had
publicly come forward in this manner as poets.(51)
Recitative poetry
however was chiefly cultivated by those poets who occupied themselves
with writing for the stage, and the former held a subordinate place as
compared with the latter; in fact, a public to which read poetry might
address itself can have existed only to a very limited extent at this
period in Rome.