Twelfth Night is a festival, in some branches of Christianity marking the end of the Christmas season and the coming of the Epiphany. It is the traditional day of the coming of the Wise Men to Jesus. As such it is a time of light to the nations who once lived in darkness.
Twelfth Night, or What You Will is a comedy by William Shakespeare, believed to have been written around 1601–02 as a Twelfth Night's entertainment for the close of the Christmas season. The play expanded on the musical interludes and riotous disorder expected of the occasion.