Question: Which organization runs the Christian feast day celebrated on 13 December in Advent?
Sentence (from "Feast of Fools"): Its later reception history has considerably obscured modern understandings of the nature and meaning of this celebration, which originated in proper liturgical observance, and has more to do with other examples of medieval liturgical drama than with either the earlier pagan (Roman) feasts of Saturnalia and Kalends or the later bourgeois lay sotie.
Relevant evidence: No