The Cornish Mummers Play by the Lizard Amateur Dramatics Society – LADS
Mummer’s Day, or “Darkie Day” as it is sometimes known (a corruption of the original Darking Day), is a traditional Cornish midwinter drama celebration that occurs every year on Boxing Day in Cornwall. It was originally part of the pagan heritage of midwinter celebrations that were regularly celebrated throughout Cornwall where people would take part in the traditional custom of guise dancing, which involves disguising themselves by painting their faces black or wearing masks.
*Information Source Wikipedia