ChōtokuChōtoku was a Japanese era name after Shōryaku and before Chōhō. This period spanned the years from February 995 through January 999. The reigning emperor was Emperor Ichijō.Change of era995 Chōtoku gannen: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Shōryaku 6, on 22 February 995.Events of the ''Chōtoku'' era995 : Fujiwara no Michinaga is given the office of Udaijin.996 : Michinaga become Sadaijin; and Fujiwara no Akimitsu is named Udaijin.