Keiō
Japanese era from May 1865 to October 1868 / From Wikipedia, the free encyclopedia
Keiō (慶応, historically 慶應) was a Japanese era name (年号,, nengō,, lit. "year name") after Genji and before Meiji. The period started in April 1865 and ended in September 1868.[1] During this time, the emperors were Kōmei-tennō (孝明天皇)[2] and Meiji-tennō (明治天皇).[3]