[shantara]

In the same vein, I’ve heard historians theorize that Doggerland was the most comfortable area for human habitation in Northern Europe during its existence, with its lowlands, lakes and river systems perfectly matching the landscape of the other ancient civilization centers. The lands of the modern UK and Scandinavia were by comparison inhospitable highlands, where humans have moved after their ancestral lands were flooded.

See https://en.wikipedia.org/wiki/Doggerland and the episode of BBC In Our Time podcast on the subject.