Eiryaku (永暦) was a Japanese era name (年号, nengō, lit. "year name") after Heiji and before Ōhō. This period spanned the years from January 1160 through September 1161.[1] The reigning emperor was Nijō-tennō (二条天皇).[2]
^Titsingh, Isaac. (1834). Annales des emepereurs du japon, pp. 191-194; Brown, Delmer et al. (1979). Gukanshō, pp. 327-329; Varley, H. Paul. (1980). Jinnō Shōtōki, pp. 208-212.