nebulous

For seven days from the 17 December it was party season in Roman times. Homes were decorated, parties held and slaves became masters - at least for one banquet. It was the start of a lengthy mid-winter period of merry-making and the season of goodwill - Saturnalia.

You learn something knew everyday

For thirty days from 1 December it was party season in Nebulous. Avatars were updated, events held and banned became admins - at least for one neb bomb. It was the start of a lengthy mid-winter period of masturbation and the season of flaming.

Don't know about the last part. :/