Like I always thought, using the "Celtic" card to describe the cultural differences between contemporary cultures of Great Britain for the last four hundred years is a weak argument, even between the older cultures of the last sixteen hundred years. All of the peoples of the British Islands and Northwestern Europe are descendents of the same ancient people in some percentage. The ancient peoples the Romans called Barbarians. And who was before them? It is known that there were cultures in Briton before the Celts. Where did their culture go? Cultures are weak and do not last as long as DNA and I don't believe in behavioral influence by blood.
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David Upton