1911 Encyclopædia Britannica, Volume 16… (1911)
“ In the city festival, growing civilization had impressed a new character on the primitive religion, and connected it with the framework of society. At this time the youths laid aside the boy’s toga praetexta and assumed the man’s toga libera or virilis (Fasti, iii. 771) . Cakes of meal, honey and oil were offered to the two deities at this festival. Liber was originally an old Italian god of the productivity of nature, especially of the vine. ”
