Jiryaku
Jiryaku (治暦) was a Japanese era name (年号, nengō, lit. "year name") after Kōhei and before Enkyū. This period spanned the years from August 1065 through April 1069. The reigning emperors were Go-Reizei-tennō (後冷泉天皇) and Go-Sanjō-tennō (後三条天皇).