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
This may be called a barbarous custom, and a nation of artistic
feelings would certainly not have tolerated the continuance of this
odd resurrection of the dead down to an epoch of fully-developed
civilization; but even Greeks who were very dispassionate and but
little disposed to reverence, such as Polybius, were greatly impressed
by the naive pomp of this funeral ceremony.
It was a conception
essentially in keeping with the grave solemnity, the uniform movement,
and the proud dignity of Roman life, that departed generations should
continue to walk, as it were, corporeally among the living, and that,
when a burgess weary of labours and of honours was gathered to his
fathers, these fathers themselves should appear in the Forum to
receive him among their number.
