Eiman

Eiman was a Japanese era name after Chōkan and before Nin'an. This period spanned the years from June 1165 through August 1166. The reigning emperor was Emperor Rokujō-tennō.

Change of era

February 13, 1165 Eiman gannen: The new era name was created to mark an event or series of events. The previous era ended and a new one commenced in Chōkan 3, on the 5th day of the 6th month in the year 1165.

Events of the ''Eiman'' era

1165 : The infant son of Emperor Nijō was named heir apparent; and this Crown Prince will soon become Emperor Rokujō.August 3, 1165 : In the 7th year of Emperor Nijō's reign, the emperor fell so very ill that he abdicated, and the succession was received by his son. Shortly thereafter, Emperor Rokujō is said to have acceded to the throne.September 4, 1165 : The former-Emperor Nijō died at age 22.