>According to Colin Renfrew and a few more, we could date the Indo-European
presence in Western >Europe back to Neolithic times (and that would make
places like Stonehenge Indo-european >somehow) and I think he's right.
Renfrew's theories on the Neolithic spread of Indo European are not highly
regarded by linguists - mainly because of the time depth (in other words,
the Indo European languages are too similar to one another to have been
spread out across Europe and Asia that early). What is more likely is that a
proto-Proto-Indo European might have arrived in Europe with the Neolithic
farmers, which may have paved the way for later waves of Indo European.
Now, I personally think that it's possible for some of the Bronze Age
peoples of Britain & Ireland to have spoken a form of Proto-Indo European -
and that the Bronze Age Britons shared linguistic ties with Gaul, so that
when Celtic languages began to flourish there (perhaps during the 2nd-1st
millennia BC), they quickly spread to Britain & Ireland.
- Chris Gwinn