Twelfth Night is a festival Western Christianity that takes place on the last night of the Twelve Days of Christmas, marking the coming of the Epiphany. Different traditions mark the date of Twelfth Night on either 5 January or 6 January, depending on which day one considers to be the first of the Twelve Days: 25 or 26 December.
Modern enthusiasts revived a Mummer’s play in the late 1990s and tour villages in the Ryburn valley, Calderdale (in the northern English county of Yorkshire) between the New Year and Twelfth Night. The last performance takes place on the old New Year’s Day (Twelfth Night) when it is performed outside The Bridge Inn at Cragg Vale.
A belief has arisen in modern times, in some English-speaking countries, that it is unlucky to leave Christmas decorations hanging after Twelfth Night, a tradition originally attached to the festival of Candlemas (2 February), which celebrates the Presentation of Jesus at the Temple.[Other popular Twelfth Night customs include singing Christmas carols, chalking the door, having one’s house blessed, merrymaking, as well as attending church services.