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 of going door-to-door collecting food for Samhain feasts, fuel for Samhain bonfires and/or offerings for the "aos sí". Alternatively, it may have come from the All Saints/All Souls custom of collecting soul cakes. The "traditional illumination for guisers or pranksters abroad on the night in some places was provided by turnips or mangel wurzels, hollowed out to act as lanterns and often carved with grotesque faces". They were also set on windowsills. By those who made them, the lanterns were variously said to represent the spirits or supernatural beings, or were used to ward off evil spirits. These were common