From 1996 to 2018, Aomori Prefecture has compiled the history of itself and published 36 volumes of "The History of Aomori Prefecture" and 14 volumes of "The History of Aomori Prefecture Series". These have covered a wide range of fields and long timeframes: Nature, Archeology, Ancient, Medieval, Early modern, Modern, Folklore and Cultural property. In the process of compiling, with the cooperation of many institutions and persons, we recorded or collected various historical materials. After compilation, we are publishing these historical materials through “Digital Archives of the History of Aomori Prefecture”.