- the designation of the period of the reign of Emperor Mutsuhito from 1868 to 1912.
- the reign of Emperor Mutsuhito (1867–1912), during which Japan began a rapid process of Westernization, industrialization, and expansion in foreign affairs
- the throne name of Mutsuhito (ˌmuːtsʊˈhiːtəʊ). 1852–1912, emperor of Japan (1867–1912)