Real cool. Post-Roman collapse 450CE, there was no wave of hordes of barbarians. Instead ze local Germans finally and suddenly mated with migrants from NL, UK, who had arrived much, much earlier but had (been) kept separate for unknown reasons
https://www.nature.com/articles/s41586-026-10437-3
Had those fled rising sealevel? 🤔
Press release in English and German https://press.uni-mainz.de/after-rome-genomic-insights-from-southern-germany-on-the-formation-of-central-european-societies/
#archeogenetics

Demography and life histories across the Roman frontier in Germany 400–700 ce - Nature
Analysis of 258 ancient genomes from southern Germany reveals a major demographic shift during the late fifth century, yet family structures persisted from Late Roman times, demonstrating cultural continuity despite profound demographic reorganization.


