A Chinese legend of uncertain provenance states that Xu Fu, a Qin Dynasty court sorcerer, was sent by Qin Shi Huang to Penglai Mountain (Mount Fuji) in 219 BC to retrieve an elixir of life. Xu could not find any elixir of life and was reluctant to return to China because he knew he would be sentenced to death, Xu instead stayed in Japan. Other immigrants are also thought to include major population movements such as that of the Hata clan. The Hata clan claimed to be the descendants of Qin Shi Huang.