Kōchō
Period of Japanese history (1261–1264 CE) / From Wikipedia, the free encyclopedia
Kōchō (弘長) was a Japanese era name (年号, nengō, lit. "year name") after Bun'ō and before Bun'ei. This period spanned the years from February 1261 to February 1264.[1] The reigning emperor was Kameyama-tennō (亀山天皇).[2]