Investigating Celtic civilization has caught my attention this theory of DNA.
According to these studies, the Celts would have originated in northern Spain.
I found very interesting so I'll post it
(Look at the article islands of blood)
http://en.wikipedia.org/wiki/Bryan_Sykes
(information from another site)
According to a study conducted by the professor of genetics and molecular medicine at the University of Oxford, Bryan Sykes, Celts who inhabited Britain before the arrival of Saxons, Vikings and Normans, descendants of populations from the Iberian Peninsula who crossed the Bay of Biscay over 4000 years ago.
In reaching this conclusion, the team led by Sykes, took DNA samples from more than 10,000 people in the UK and Ireland, in order to develop a complete genetic map, with the result that people traditionally called Celtic, Scottish, Welsh and Irish, have a close relationship with the northern populations of Iberia, curiously from a haplogroup that has its source of emission in the Bay of Biscay. The composition analysis of Y chromosome DNA fingerprints revealed that the Celts were almost identical to those of the inhabitants of northern Spain.
Daniel G. Bradley, professor of genetics at Trinity College Dublin, reached the same genetic results published by Sykes. Should be completed when Bradley speaks of the "Atlantic coast" does not as is common in Spain to refer to Galicia and Portugal, but it limited the Atlantic Pyrenees: "The similarity between the Atlantic coastal areas is more evident and shows that in fact the west of Ireland and Great Britain have a greater affinity with the Basque region. " Thus, the genetic affinities are highest between the Irish and the Cantabrian-Pyrenean, and descend into the western populations of northern Spain.
These studies appear to contradict traditional theories suggest that the British Celts from central Europe. However, it is likely that this Iberian genetic inheritance in the British Isles is related to the expansion megalithic prior to the existence of the Celts. Are you aware of business contacts and a breadcrumb ancient, prehistoric, linking the Gulf of Cadiz with what are now Ireland and Britain.
To this must be added the evidence that in 10,000 BC Europe was experiencing a mini ice age and the Iberian Peninsula was one of the few places in Europe where man could live. Much of the European continent, including the British Isles was covered in ice cream. In retreating ice, there was a northward migration. All this happened long before the birth of any Celtic culture.