Kanna (era)
Kanna (寛和?) was a Japanese era name (年号,, nengō,?, lit. "year name") after Eikan and before Eien. This period spanned the years from April 985 through April 987. The reigning emperors were En'yu-tennō (円融天皇?) and Ichijō-tennō (一条天皇?).
Read more about Kanna (era): Change of Era, Events of The Kanna Era