Eikan

Eikan was a Japanese [era name] after Tengen and before Kanna. This period spanned the years from April 983 through April 985. The reigning emperors were Emperor En'yū and Emperor Kazan.

Change of era

February 16, 983 Eikan gannen]: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Tengen 6, on the 15th day of the 4th month of 983.
Events of the ''Eikan'' era
October 6, 983 : In the 15th year of Emperor En'yu's reign, he abdicated; and the succession was received by a nephew. Shortly thereafter, Emperor Kazan is said to have acceded to the throne.
September/October 983 : Chōnen, the Buddhist monk of the Tendai school embarked on a voyage to China accompanied by 5 or 6 disciples.