Eikan (永観) was a Japanese era name (年号,,nengō,, lit. "year name") after Tengen and before Kanna. This period spanned the years from April 983 through April 985. The reigning emperors were En'yū-tennō (円融天皇) and Kazan-tennō (花山天皇).
February 16, 983Eikan gannen (永観元年)]: 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 (Eikan 1, 27th day of the 8th month): In the 15th year of Emperor En'yu's reign (円融天皇15年), he abdicated; and the succession (senso) was received by a nephew. Shortly thereafter, Emperor Kazan is said to have acceded to the throne (sokui).
September/October 983 (Eikan 1, 8th month): Chōnen, the Buddhist monk of the Tendai school embarked on a voyage to China accompanied by 5 or 6 disciples.