Eikyū
Eikyū (永久?) was a Japanese era name (年号, nengō,?, lit. "year name") after Ten'ei and before Gen'ei. This period spanned the years from July 1113 through April 1118. The reigning emperor was Emperor Toba-tennō (鳥羽天皇?).
...
Wikipedia
Eikyū (永久?) was a Japanese era name (年号, nengō,?, lit. "year name") after Ten'ei and before Gen'ei. This period spanned the years from July 1113 through April 1118. The reigning emperor was Emperor Toba-tennō (鳥羽天皇?).