Kōji (Heian period)

Change of Era

• January 29, 1142 Kōji gannen: The new era name was created to mark an event or series of events. The previous era ended and a new one commenced in Eiji 2, on the 28th day of the 4th month of 1142.

  Events of the ''Kōji'' Era

• 1143 : Cloistered Emperor Go-Toba-in, now known by the title Daijō Tennō or Daijō Hōō or Hōō, visited his mother.
• 1143 : Emperor Konoe passed his days praying at Tōdai-ji and also at the temples on Mount Hiei.