The Anglo-Saxon migration: New insights from genetic

Scholars like Bede wrote on migrations of Angles & Saxons to British Isles about 300yrs after Romans left. Extent, nature & effects of human migration during period have been the subject of dispute.

According to recent Genetic studies, over 75% of the people in Eastern & Southern England were members of immigrant families who must have come from continental areas surrounding the North Sea.

Study author Joscha Gretzinger says, "With 278 ancient genomes from England and 100 more from Europe, we now got extremely unique insights on population-scale & personal history from post-Roman ages."

She and her team found minor genetic differences among closely related tribes living in the ancient North Sea area using published genetic data from more than 4000 ancient and 10000 modern Europeans.

We see considerable variation in how this migration affected communities. In some places, we see clear signs of active integration between locals and immigrants.

-Duncan Sayer,  Lead Archaeologist 

In some cases, like Apple Down in West Sussex, we see that people with immigrant and local ancestry were buried separately in the cemetery which shows some social separation at this site.

-Duncan Sayer

With the new data, the team could also consider the impact of this historic migration today. 

Only 40% of modern English DNA came from these ancient continental origins but 20–40% originated in France or Belgium. Archaeologists & tombs found in early Medieval graves show this genetic component