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 as All Saints and All Souls. Since then, Samhain has been popularly seen as the Celtic New Year and an ancient festival of the dead. The calendar of the Celtic League, for example, begins and ends at Samhain. In the Brythonic branch of the Celtic languages, Samhain is known as the 'calends of winter'. The Brythonic lands of Wales, Cornwall and Brittany held festivals on 31 October similar to the Gaelic one. In Wales it is "Calan Gaeaf", in Cornwall it is Allantide or "Kalan Gwav" and in Brittany it is "Kalan Goañv". The Manx celebrate Hop-tu-Naa on 31 October,