English: stone monument of Hyogushi Kokichi(Ukita Kokichi) at a ridge of Asahi river in Uchisange, Okayama city, Okayama, Japan.It is assumed that he glided for the first time in the sky in the world.
{{Information| |Description = stone monument of Hyogushi Kokichi(Ukita Kokichi) at a ridge of Asahi river in Uchisange, Okayama city, Okayama, Japan.It is assumed that he glided for the first time in the sky in the world. |Source = photo by [[:ja:User:Reg