Tokyo where empire of Japan was Born.... Dressed in purest White, Mt. Takachiho talks on added significance today, 2,600 years after the founding of the Empire, as it is believed to be the peak upon which Prince Ninigi-no-Miroto, grandson of the Sun Goddess Amaterasu-e-Mikami, alighted from the Heavens. The Prince's grandson Prince Kan-Yamato-Iware-Hiko, later became the first ruler of Japan. Emperor Jimmu. The mountain is located in the Nishi-Usuki district, Hyuga, which is part of Miyazaki Prefecture, Kyushu. March 11, 1940.