Question: Terttu Nevalainen works on the history of the language that evolved from which dialects brought to Britain in the 5th-7th centuries?
Sentence (from "History of English"): English is a West Germanic language that originated from Anglo-Frisian dialects brought to Britain in the mid 5th to 7th centuries AD by Germanic invaders and settlers from what is now northwest Germany, west Denmark and the Netherlands, displacing the Celtic languages that previously predominated.
Relevant evidence: Yes