The Irish are Not Celts

[Anastasios Helios]

I guess you could say the same thing about English people then...they probably came from the same migrations that originally settled the British Isles, but they have the "Anglo-Saxon" culture so it makes them Germanic. I'm sure that despite most of Europe speaking Indo-European languages, ethnically, many people there probably aren't of true "Indo-European origin." Languages and culture tend to spread by assimilation and conquest...less by changing the gene pool. The Gauls spoke a Celtic language, but it doesn't mean that they all migrated from wherever the Indo-Europeans lived long ago. They were probably mostly descended from the old Megalithic peoples as well as most other Europeans...that's my theory.