https://onlinelibrary.wiley.com/doi/full/10.1002/ajpa.23711 Genetic history of Chad
ЦитироватьWe found that Y DNA haplogroup R1b entered the Chadian gene pool during Baggarization. Baggara Arabs spoke Arabic, not Chadic, implying that people carrying R1b‐V88 were not responsible for the spread of Chadic languages, which may have spread approximately 3,700 years ago. We found no evidence for migration of Near Eastern farmers or any ancient episodes involving Eurasian backflow.
Не понять этих генетиков... То с воодушевлением писали, что R1b-V88 в Чадском бассейне связаны с чадскими языками, а теперь вон оно как повернулось - баггаризация-арабизация. :???