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
He thus consented to those proposals
of accommodation, with which at the beginning of the discussions
the senatorial party and even Pompeius himself had declared
that they would be satisfied, and showed himself ready to remain
in a private position from his election to the consulate down to
his entering on office.
Whether Caesar was in earnest with these
astonishing concessions and had confidence that he should be able
to carry through his game against Pompeius even after granting
so much, or whether he reckoned that those on the other side
had already gone too far to find in these proposals of compromise
more than a proof that Caesar regarded his cause itself as lost,
can no longer be with certainty determined. The probability is,
that Caesar committed the fault of playing a too bold game, far worse
rather than the fault of promising something which he was not minded
to perform; and that, if strangely enough his proposals had been
accepted, he would have made good his word.