Question: Doggerland was an area now beneath the southern North Sea that connected Great Britain to continental Europe during and after the last glacial period, it was probably a rich habitat with human habitation in the Mesolithic period, although rising sea levels gradually reduced it to low-lying islands before its final submergence, possibly following a tsunami caused by the Storegga Slide, The three Storegga Slides are considered to be amongst the largest known ?
Sentence (from "Geology of southern North Sea"): First the creation of the Sub-Cambrian peneplain, followed by the Caledonian Orogeny in the late Silurian and early Devonian.
Relevant evidence: No