(Greek) Ancient: 23 Anthesterion.
The Diasia (from Deus = Zeus) is the principal festival for Zeus Meilikhios (The Kindly), who is Zeus in chthonic aspect, manifesting as a giant snake. On this day everyone makes bloodless offerings (thumata epikhoria) to Him, typically cakes in the shape of animals such as sheep or pigs, but also grain and fruit because He is responsible for the fertility of the soil and is often shown with a cornucopia. Since this is a festival of propitiation, the entire offering is burnt for the God. After that there is general feasting and gifts may be given to children (who are especially dear to chthonic deities).