of both Japan and Okinawa, especially, the languages, history of Okinawa, and proposed the Okinawan people and Japanese people had the same ancestors. His studies started from Omorosoushi, and covered the study of history, linguistics, anthropology, archaeology, study of religions, mythology, the study of civilization, ethnology and literature. Using the Okinawan language, he tried to raise the pride of Okinawans in their land. His proposals have been established as the basis of Okinawaology. Those who study Okinawaology are not restricted to scholars. Okinawaology covers many other branches, such as politics, economics, laws, and natural circumstances. Tomb His tomb is at Urasoe Castle showing the following epitaph. Related persons Shinmura Izuru (1876–1967), Torii Ryūzō (1870–1953), Kunio Yanagita (1875–1962), Shinobu Orikuchi (1887–1953), Yanagi Sōetsu (1889–1961), Minakata Kumagusu (1867–1941), Hajime Kawakami (1879–1946), Kyōsuke Kindaichi (1882–1971), Shirō Hattori (1908–1995) Higashionna Kanjun (1882–1963): Historian concerning Okinawa, Professor at Takushoku University. Tajima Risaburo (1869–1929): Teacher of Iha. He studied Omorosoushi and gave documents of Omorosoushi to Iha. Higa Shuncho (1883–1977): Okinawa historian. Esperantist. Majikina Anko (1875–1933): One of the co-leaders of the strike. Historian. In 1925, he became the director of the Okinawa Prefectural Library. His 1000 year history of Okinawa was said to be an encyclopedia of Okinawa. Hashimoto Shinkichi (1882–1945): Japanese language scholar. Ogura Shinpei (1882–1944): Japanese language scholar. Kinjo Choei (1902–1955): Okinawan language scholar. Nakahara Zenchu (1890–1964): Okinawan culture scholar. Author of Omorosoushi Encyclopedia (1978) and History of Ryukyu (1978). Nakasone Seizen (1907–1995): After meeting Iha at Tokyo University, he studied the dialect of Okinawa. He led nursing students at the end of the war and spoke for peace. Shibuzawa Keizo (1896–1963): Minister of Finance, Folklore scholar. Hokama Shuzen (b. 1924 ): Okinawan culture scholar. Sasaki Nobutsuna (1872–1963): Tanka poet, Japanese language scholar. Shimbukuro Gen-ichiro (1885–1942): Okinawa culture scholar. Kanna Kenwa(1877–1950): The main leader of the strike. Governor of Okinawa Narahara Shigeru helped him graduate the school. He joined the Russo-Japanese war and became a rear admiral of the Japanese Navy, and a representative of the lower house. Iha Getsujo, (1880–1945): A younger brother of Iha Fuyu. Newspaperman of Okinawa Mainichi newspaper. Kanagusuku Kiko (1875–1967): One of the co-leaders of the strike. Became the first physician in Okinawa and the director of Okinawa Prefectural Hospital. Teruya Hiroshi (1875–1939): One of the co-leaders of the strike. After studying engineering at Kyoto University, he went to Taiwan, and later he became Mayor of Naha. He