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
On these relations was based
the power of Crassus; out of them arose the insurrections--whose motto
was "a clear sheet"-of Cinna(54) and still more definitely of Catilina,
of Coelius, of Dolabella entirely resembling the battles between those
who had and those who had not, which a century before agitated
the Greek world.(55)
That amidst so rotten an economic condition
every financial or political crisis should occasion the most dreadful
confusion, was to be expected from the nature of the case; we need
hardly mention that the usual phenomena--the disappearance of capital,
the sudden depreciation of landed estates, innumerable bankruptcies,
and an almost universal insolvency--made their appearance now
during the civil war, just as they had done during the Social
and Mithradatic wars.(56)