Traditionally, the essential defining criterion of Celticity is seen as peoples and countries that do, or once did, use Celtic languages and it is asserted that an index of connectedness to the Celtic languageshas to be borne in mind

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'Celt' has been adopted as a label of self-identification by a variety of peoples at different times. 'Celticity' can refer to the inferred links between

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The modern Celtic groups' distinctiveness as national, as opposed to regional, minorities has been periodically recognised by major

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Six nations tend to be most associated with a modern Celtic identity, and are considered 'the Celtic nations'.
Brittany Ireland Scotland

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A profound interest in genealogy and family historyis noted as a feature of the culture of the Celtic nations and regions and people with a Celtic heritage. Historically, some people in Celtic areas could recite their genealogy back though the generations as history,

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A significant portion of the populations of the United States, Canada, Australia and New Zealand is composed of people whose ancestors were from one of the "Celtic nations". This concerns the Irish diaspora most significantly (see also Irish American), but to a lesser extent

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In 1996, Dr Ruth Megaw and Emeritus Professor Vincent Megaw of Flinders University in the Antiquityarticle "Ancient Celts and modern ethnicity" examined ethnic identity particularly in relation to Celtic identity in arguing against critics seemingly motivated by

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