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Kōhō
Period of Japanese history (964–968 CE) / From Wikipedia, the free encyclopedia
Kōhō (康保) was a Japanese era name (年号, nengō, "year name") after Ōwa and before Anna. This period spanned the years from July 964 through August 968.[1] The reigning emperors were Murakami-tennō (村上天皇) and Reizei-tennō (冷泉天皇).[2]