There was also another rumor which had already existed during the Edo period that Yoshitsune went to the continent and became a Jurchen (in Manchuria), and based on this rumor, a legend that Yoshitsune had become Genghis Khan, that was born in the Meiji period.
このように江戸時代に既に存在した義経が大陸渡航し女真（満州）になったという風説から、明治時代になると義経がチンギス・ハーンになったという説が唱えられるようになった。