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
A fresh addition was the Persian worship, which is said
to have first reached the Occidental through the medium of the pirates
who met on the Mediterranean from the east and from the west;
the oldest seat of this cultus in the west is stated to have been
Mount Olympus in Lycia.
That in the adoption of Oriental worships
in the west such higher speculative and moral elements as they contained
were generally allowed to drop, is strikingly evinced by the fact
that Ahuramazda, the supreme god of the pure doctrine of Zarathustra,
remained virtually unknown in the west, and adoration there
was especially directed to that god who had occupied the first place
in the old Persian national religion and had been transferred
by Zarathustra to the second--the sun-god Mithra.
