Over thirty years later, in 1908, Saeki Yoshiro (1872-1965), a Waseda University professor, a Christian, and expert on Chinese Nestorians, published a book in which he developed a somewhat similar theory. According to Saeki, the Hata clan, which arrived from Korea and settled in Japan in the third century, was a Jewish-Nestorian tribe... Saeki's writings spread the theory about "the common ancestry of the Japanese and the Jews" ("Nichi-Yu dosoron") in Japan, a theory that was endorsed by some Christian groups.