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Chōtoku ( was a 長徳) Japanese era name ( after 年号, , lit. "year name") nengō, and before Eiso This period spanned the years from February 995 through January 999. Chōhō. The reigning emperor was  Ichijō -tennō (. 一条天皇)
Change of era
995 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 長徳元年) Shōryaku 6, on 22 February 995. 
Events of the Chōtoku era
^ Nussbaum, Louis-Frédéric. (2005). "
Chōtoku" in Japan Encyclopedia, p. 124, at , p. 124 Google Books; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File.
^ Titsingh, Isaac. (1834).
Brown, Delmer Annales des empereurs du japon, pp. 150-153; et al. (1979). Gukanshō, p. 302-307; Varely, H. Paul. (1980). Jinnō Shōtōki, pp. 192-195.
^ Brown, p. 305.