Some day, we are going to have to do a long post about Doggerland. Right now is a busy time of year, so I don’t have the time for that at the moment, but long story short, Doggerland has everything.
Doggerland was an area that you probably know as “the bottom of the North Sea.” Apparently, there is a shallow area there, with evidence that when sea levels were lower, it was once not only exposed but inhabited. This vast area of land would have joined England and Ireland to what is now Holland and Denmark. The proximity to Holland, plus the theory that Doggerland is the setting for The Lord of the Rings, are what I mean when I say this place has everything.
For now, let’s put a pin in this article. Jean Deruelle, the French guy with the theory, has detailed ideas about exactly what the inhabitants of Doggerland got up to. He assumes (reasonably, I think) that they were part of the Old European megalithic culture. The article also includes lots of cool speculative maps of Doggerland in various stages of submersion by the sea. We can argue about the exact timing of it all, later.