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The ancestors of Japanese and Koreans both came from China? Japanese and Koreans used to be from China?

South Korea and North Korea belong to the Tungusic language family and are the same species as Manchu. There are some aborigines on the island of Japan, and there are three large-scale adherents to Japan in China, one in the Qin and Han Dynasties, one in the Song Dynasty and one in China. A large number of gentry entered Japan, ranking third in the Ming Dynasty. Similarly, 60% of people in Japan now may be descendants of immigrants.