is a prefecture located in the Kansai region on Honshu, the main island of Japan. The capital is the city of Osaka. It is the center of Osaka-Kobe-Kyoto area.HistoryUntil the Meiji Restoration, the area of Osaka prefecture was known as Kawachi, Izumi, and Settsu provinces.Osaka Prefecture was created on June 21, 1868, at the very beginning of the Meiji era. During the instigation of Fuhanken Sanchisei in 1868, the prefecture received its suffix fu, designating it as an urban prefecture.On September 1, 1956, the city of Osaka was promoted to a city designated by government ordinance and thereby divided into 24 wards.In 2000, Fusae Ota became Japan's first female governor when she replaced Knock Yokoyama, who resigned after prosecution for sexual harassment.On April 1, 2006: the city of Sakai was promoted to a city designated by government ordinance and thereby divided into seven wards.