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 century. Since the later 20th century, Celtic neopagans and Wiccans have observed Samhain, or something based on it, as a religious holiday. Neopagans in the Southern Hemisphere often celebrate Samhain at the other end of the year (about 1 May). In Modern Irish as well as Scottish Gaelic the name is . Older forms of the word include the Scottish Gaelic spellings and . In Manx Gaelic the name is . These are also the names of November in each language, shortened from "Mí na Samhna" (Irish), "Mì na Samhna" (Scottish Gaelic) and "Mee Houney" (Manx), meaning "month of Samhain".