Since ancient times, Japanese people have been classified as "foreign people" and "foreigners". In ancient times, Japanese countries have always called Ainu people "Xiayi" and divided them into East Xiayi, West Xiayi, Dudao Xiayi and Dujue Xiayi according to their geographical distribution.
The word "Xiayi" has a derogatory literal translation meaning "Maoren, prisoner and barbarian" Ainu people, unlike neighboring Huns, may be descendants of early Caucasians who were once widely distributed in northern Asia. It is worth noting that the four big islands of Japan used to be inhabited by Xiayi people, who were forced by the