Samhain in parts of Ireland and the Scotland into the 20th century. They were also found in Somerset (see Punkie Night). In the 20th century they spread to other parts of England and became generally known as jack-o'-lanterns. During the late 19th and early 20th century Celtic Revival, there was an upswell of interest in Samhain and the other Celtic festivals. Sir John Rhys put forth that it had been the "Celtic New Year". He inferred it from contemporary folklore in Ireland and Wales, which he felt was "full of Hallowe'en customs associated with new beginnings". He visited Mann and found
Samhain great wisdom. This may refer to gaining knowledge from the ancestors. "Acallam na Senórach" ('Colloquy of the Elders') tells how three female werewolves emerge from the cave of Cruachan (an Otherworld portal) each Samhain and kill livestock. When Cas Corach plays his harp, they take on human form, and the fianna warrior Caílte then slays them with a spear. Some tales may suggest that offerings or sacrifices were made at Samhain. In the "Lebor Gabála Érenn" (or 'Book of Invasions'), each Samhain the people of Nemed had to give two-thirds of their children, their corn and their milk to the