GenryakuGenryaku was a Japanese era name after Juei and before Bunji. This period spanned the years from April 1184 through August 1185. The reigning emperors were Emperor Antoku and Emperor Go-Toba.Change of era1184 Genryaku 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 Juei 3, on the 16th day of the 4th month of 1184.Events of the ''Genryaku'' era1185 : the Taira and the Minamoto clashed in the Battle of Dan-no-ura; and the Heike were utterly defeated.1185 : Great earthquake caused turmoil in the capital and in the neighboring provinces.