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 the reaction
did not immediately attack the distributions of grain, the taxation
of the province of Asia, or the Gracchan arrangement as to the jurymen
and courts; on the contrary, it not only spared the mercantile
class and the proletariate of the capital, but continued to render
homage, as it had already done in the introduction of the Livian
laws, to these powers and especially to the proletariate far more
decidedly than had been done by the Gracchi.
This course was not
adopted merely because the Gracchan revolution still thrilled for
long the minds of its contemporaries and protected its creations;
the fostering and cherishing at least of the interests of the populace
was in fact perfectly compatible with the personal advantage of
the aristocracy, and thereby nothing further was sacrificed than
merely the public weal.