Oho period
Ōhō (応保) was a Japanese era name (年号, nengō,, lit. "year name") after Eiryaku and before Chōkan. This period spanned the years from September 1161 through March 1163. The reigning emperor was Nijō-tennō (二条天皇).
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Wikipedia
Ōhō (応保) was a Japanese era name (年号, nengō,, lit. "year name") after Eiryaku and before Chōkan. This period spanned the years from September 1161 through March 1163. The reigning emperor was Nijō-tennō (二条天皇).