嘉か祥しょうかしょうMeanings1nounKashō era (848-851)historical termHistorical Japanese era name (年号). Used in historical contexts to refer to the period from June 13, 848 to April 28, 851 in the Julian calendar.嘉か祥しょう年ねん間かんに起おきた出で来き事ごとを調しらべている。I am researching events that occurred during the Kashō era.