The Celts, a Sceptical History

The traditional view was that there were people called celts. They existed somewhere in europe and invaded the british isles at some point in the second or first millennium b c. When the romans invaded, everybody spoke a celtic language. And they remained there when the romans left, and they were then invaded a hundred years later by people called the anglo saxons,. who made half of them speak something called english. So am trying to debunk what is now legendary history and restore it to real history. There's never been anything in common between the scots, the irish and the welsh. Less face it, they've never banded together. They