"Jan Czekanowski (October 8, 1882, Głuchów – July 20, 1965, Szczecin) was a Polish anthropologist, statistician, ethnographer, traveller, and linguist. His scientific contributions include introducing his system of racial classification and founding the field of computational linguistics.
Czekanowski is known for having played an important role in saving the Polish-Lithuanian branch of the Karaite people from Holocaust extermination. In 1942, he managed to convince German "race scientists" that the Karaites were of Turkic origin although professing Judaism and using Hebrew as a liturgical language. This helped the Karaites escape the tragic destiny of other European Jews and the Romas." - (en.wikipedia.org 11.08.2021)
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