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
It was certain beyond dispute, not only that Marius
had saved Rome, but that he was the only man who could have saved it;
his name was on every one's lips; the men of quality acknowledged his
services; with the people he was more popular than any one before or
after him, popular alike by his virtues and by his faults, by his
unaristocratic disinterestedness no less than by his boorish roughness;
he was called by the multitude a third Romulus and a second Camillus;
libations were poured forth to him like the gods.
It was no wonder that
the head of the peasant's son grew giddy at times with all this glory;
that he compared his march from Africa to Gaul to the victorious
processions of Dionysus from continent to continent, and had a cup--none
of the smallest--manufactured for his use after the model of that of
Bacchus. There was just as much of hope as of gratitude in this
delirious enthusiasm of the people, which might well have led astray
a man of colder blood and more mature political experience. The work
of Marius seemed to his admirers by no means finished.