Gennin
Gennin was a Japanese [era name] after Jōō and before Karoku. This period spanned the years from November 1224 to April 1225. The reigning emperor was Emperor Go-Horikawa.
Change of era
- 1224 Gennin gannen: The era name was changed to mark an event or a number of events. The previous era ended and a new one commenced in Jōō 3.
Events of the ''Gennin'' Era
- 1224 : Kyogyoshinsho was believed to have been composed in 1224; and this is also considered the year in which Jōdo Shinshū was founded.