Saturnalia was an ancient Roman festival in honour of the deity Saturn, held on 17 December of the Julian calendar and later expanded with festivities through to 23 December. The holiday was celebrated with a sacrifice at the Temple of Saturn, in the Roman Forum, and a public banquet, followed by private gift-giving, continual partying, and a carnival atmosphere that overturned Roman social norms: gambling was permitted, and masters provided table service for their slaves. In Roman mythology, Saturn was an agricultural deity who was said to have reigned over the world in the Golden Age, when humans enjoyed the spontaneous bounty of the earth without labor in a state of innocence. The revelries of Saturnalia were supposed to reflect the conditions of the lost mythical age, not all of them desirable. The Greek equivalent was the Kronia.
The popularity of Saturnalia continued into the third and fourth centuries AD, and as the Roman Empire came under Christian rule, some of its customs have influenced the seasonal celebrations surrounding Christmas and the New Year. Saturnalia is the best-known of several festivals in the Greco-Roman world characterized by role reversals and behavioral license. Slaves were treated to a banquet of the kind usually enjoyed by their masters. Ancient sources differ on the circumstances: some suggest that master and slave dined together, while others indicate that the slaves feasted first, or that the masters actually served the food. The practice may have varied over time, and in any case slaves would still have prepared the meal. The toga, the characteristic garment of the male Roman citizen, was set aside in favor of the Greek synthesis, colourful “dinner clothes” otherwise considered in poor taste for daytime wear.
The Sigillaria on December 19 was a day of gift-giving. Because gifts of value would mark social status contrary to the spirit of the season, these were often the pottery or wax figurines called sigillaria made specially for the day, candles, or “gag gifts”, of which Augustus was particularly fond. Children received toys as gifts. In a practice that might be compared to modern greeting cards, verses sometimes accompanied the gifts. Martial has a collection of poems written as if to be attached to gifts. Catullus received a book of bad poems by “the worst poet of all time” as a joke from a friend. As an observance of state religion, Saturnalia was supposed to have been held ante diem xvi Kalendas Ianuarias, sixteen days before the Kalends of January, on the oldest Roman religious calendar, which the Romans believed to have been established by the legendary founder Romulus and his successor Numa Pompilius.