For the formerly-German town of Gennin, see Jenin, Poland

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Gennin (元仁) was a Japanese era name (年号,, nengō,, lit. "year name") after Jōō and before Karoku. This period spanned the years from November 1224 to April 1225.^[1] The reigning emperor was Go-Horikawa-tennō (後堀河天皇).^[2]

Change of era

• 1224 Gennin gannen (元仁元年): 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 (Gennin 1): Kyogyoshinsho was believed to have been composed in 1224; and this is also considered the year in which Jōdo Shinshū was founded.^[3]