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
Of a kindred character was the formal separation of the places
assigned to the senatorial order from those occupied by the rest of
the multitude as spectators at the national festivals. It was the
great Scipio, who effected this change in his second consulship in
560.
The national festival was as much an assembly of the people as
were the centuries convoked for voting; and the circumstance that the
former had no resolutions to pass made the official announcement of a
distinction between the ruling order and the body of subjects--which
the separation implied--all the more significant.
The innovation
accordingly met with much censure even from the ruling class, because
it was simply invidious and not useful, and because it gave a very
manifest contradiction to the efforts of the more prudent portion of
the aristocracy to conceal their exclusive government under the forms
of civil equality.
