Ōchō (応長?) was a Japanese era name (年号,, nengō,?, lit. "year name") after Enkyō and before Shōwa. This period spanned the years from April 1311 through February 1312. The reigning emperor was Hanazono-tennō (花園天皇?).

Read more about Ōchō:  Change of Era, Events of The Ōchō Era

Other related articles:

Events of The Ōchō Era
1311 (Ōchō 1, 1st month) The sesshō, Takatsukasa Fuyuhira assisted at Emperor Hanazono's coming of age ceremony. 1311 (Ōchō 1, 3rd month) Takatsukasa Fuyuhira took on a new role as kampaku. 1311 (Ōchō 1, 9th month) Hōjō Morotoki, who was the tenth shikken of the Kamakura Bakufu, dies at the age of 37 years ...