 The legend and stories of Xu Fu and the extent of his influence is debated, and the claims that he is associated with Emperor Jimmu or [ethnically or politically] dominate the Japanese islands with his colonists has generally been debunked, lacks evidence, or is considered fictional by historians.Because genetic research shows the Japanese people are an admixture of the indigenous Jōmon people and the predominant Yayoi people.The Jōmon originated from Southeast Asia and migrated to the Japanese archipelago around 14000 BCE during Paleolithic.