Kōhō

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]