Quotes About Philocalus

Instituted in 212 BC after consulting the oracles of Marcius and the Sibyl, the Apollinarian Games at first took place on only one day (13 July), then three, and finally lasted from the 6 (if not the 5, in the calendar of Philocalus) to 13.

The first absolutely certain record which places it upon 25 December is the calendar of Philocalus, produced in 354 and apparently at Rome.