Ninna
Ninna was a Japanese era name after Gangyō and before Kanpyō. This period spanned the years from February 885 through April 889. The reigning emperors were Emperor Kōkō and Emperor Uda.
Change of era
- January 20, 885 Ninna gannen: The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Gangyō 9, on the 21st day of the 2nd month of 885.
Events of the ''Ninna'' era
- January 11, 887 : Kōkō traveled to Seri-gawa to practice falconry. He very much enjoyed this kind of hunting, and he often took time for this kind of activity.
- September 17, 887 : Kōkō died at the age of 57. Kōkō's third son received the succession. Shortly thereafter, Emperor Uda formally acceded to the throne.
- May 12, 887 : Mototsune asks Uda for permission to retire from his duties; but the emperor is said to have responded, "My youth limits my ability to govern; and if you stop offering me your good counsel, I will be obliged to abdicate and to retire to a monastery." Therefore, Mototsune continued to serve as the new emperor's kampaku.
- 887 : Construction of the newly created Buddhist temple of Ninna-ji was completed; and a former disciple of Kōbō-daishi was installed as the new abbot.