I watched it there earlier ,the faces on the men on it wouldn't stand out down my local .they've been living in the same place for 20000 years ,long before the first celt existed.Their language isn't related to any other language on the planet.Irish ,English and Scottish people have a good dash of Basque in them (welsh don't for some reason (pure celts maybe).No Greek or Roman writer called the inhabitants of Britain or Ireland celts though, Celtic identity exaggerated by academics in the late 19th century to stir shitt (a bit like Hitler with the Aryan stuff)