In Modern Irish and Scottish Gaelic the name is Samhain, while the traditional Manx Gaelicname is Sauin. It is usually written with the definite article An tSamhain (Irish), An t-Samhain (Scottish Gaelic) and Yn Tauin

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Samain or Samuin was the name of the festival (feis) marking the beginning of winter in Gaelic Ireland. It is attested in the earliest

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While Irish mythology was originally a spoken tradition, much of it was eventually written down in the Middle Ages by Christian

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Samhain was one of the four main festivals of the Gaelic calendar, marking the end of the harvest and beginning of winter. Samhain customs are mentioned in several medieval texts. In

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In the Brittonic branch of the Celtic languages, Samhain is known as the "calends of winter". The Brittonic lands of Wales, Cornwall and Brittanyheld festivals on 31 October similar to

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Samhain and Samhain-based festivals are held by some Neopagans. As there are many kinds of Neopaganism, their Samhain celebrations can be very different despite the shared name.

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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 Rhysput forth that it had been the "Celtic New Year". He inferred it from contemporary folklore in Ireland and Wales, which he felt was

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