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
Samhain say that King Tigernmas, and three-fourths of his people, died while worshiping Crom Cruach there one Samhain. The legendary kings Diarmait mac Cerbaill and Muirchertach mac Ercae each die a threefold death on Samhain, which involves wounding, burning and drowning, and of which they are forewarned. In the tale "Togail Bruidne Dá Derga" ('The Destruction of Dá Derga's Hostel'), king Conaire Mór also meets his death on Samhain after breaking his "geasa" (prohibitions or taboos). He is warned of his impending doom by three undead horsemen who are messengers of Donn, god of the dead. "The Boyhood Deeds of Fionn"