Jōryaku
Jōryaku (承暦?) was a Japanese era name (年号, nengō, lit. year name) after Jōhō and before Eihō. This period spanned the years from November 1077 through February 1081. The reigning emperor was Emperor Shirakawa-tennō (白河天皇?).
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Wikipedia
Jōryaku (承暦?) was a Japanese era name (年号, nengō, lit. year name) after Jōhō and before Eihō. This period spanned the years from November 1077 through February 1081. The reigning emperor was Emperor Shirakawa-tennō (白河天皇?).