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Recent genomic analysis showed that Okinawans and locals in Hokkaido have a lot in common. Ryukyu-jin and Ainu, indigenous people in Okinawa and Hokkaido, are thought to be of descent of Jomon man or Jomonjin, the first ethnic group of Japanese that lived in Japan. While Jomonjin moved to Japan, coming from Southeast Asia, the second group Yayoijin or Yayoi person, came from Northeast Asia.
