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 and when livestock were slaughtered for the winter. As at Bealtaine, special bonfires were lit. These were deemed to have protective and cleansing powers and there were rituals involving them. Like Bealtaine, Samhain was seen as a liminal time, when the boundary between this world and the Otherworld could more easily be crossed. This meant the "Aos Sí", the 'spirits' or 'fairies', could more easily come into our world. Most scholars see the "Aos Sí" as remnants of the pagan gods and nature spirits. At Samhain, it was believed that the "Aos Sí" needed to be propitiated to ensure that