Samhain step from guising to playing pranks". Playing pranks at Samhain is recorded in the Scottish Highlands as far back as 1736 and was also common in Ireland, which led to Samhain being nicknamed "Mischief Night" in some parts. Wearing costumes at Halloween spread to England in the 20th century, as did the custom of playing pranks, though there had been mumming at other festivals. At the time of mass transatlantic Irish and Scottish immigration, which popularised Halloween in North America, Halloween in Ireland and Scotland had a strong tradition of guising and pranks. Trick-or-treating may have come from the custom
Mongfind Ireland, whom she is said to have killed with poison in a bid to make her son king. She drank the poisoned drink to convince Crimthann, and died soon after at Samhain. According to "Cormac's Glossary", she was a goddess the pagan Irish worshipped on Samhain. This was also called the "Féile Moingfhinne" i.e. "Festival of Mongfind". Later legend, as documented in Patrick Weston Joyce's "Social History of Ancient Ireland", makes her a banshee. A prominent hill called "Cnoc Samhna" ("Hill of Samhain") or "Ard na Ríoghraidhe" ("Height of the Kingfolk") in County Limerick is associated with a tale linked