It's also interesting that Eastern England, Frisia (coastal Netherlands), Denmark, etc. all surround Doggerland and Eastern England was probably occupied by rel

It's also interesting that Eastern England, Frisia (coastal Netherlands), Denmark, etc. all surround Doggerland and Eastern England was probably occupied by related Germanic speakers at that time - the Frisian language is still the closest related language to English on the continent. The Roman description of "The Saxon Shore" may simply because it was already inhabited by Angles and Saxons - the seas being the ancient world's highways.