schwit1 writes: The discovery of a burial site in Ireland has thrown into doubt all theories concerning the Celtic origins of the Irish. "'The DNA evidence based on those bones completely upends the traditional view,' said Barry Cunliffe, an emeritus professor of archaeology at Oxford who has written books on the origins of the people of Ireland. DNA research indicates that the three skeletons found behind McCuaig's are the ancestors of the modern Irish and they predate the Celts and their purported arrival by 1,000 years or more. The genetic roots of today's Irish, in other words, existed in Ireland before the Celts arrived." The article is quite detailed, and outlines the overall scientific problem of the Celts: [namely that it] is now quite unclear who they were, where they came from, and where they went. In related news: Scientists have found new evidence of a human presence in Ireland as far back as 12,500 years ago.