Seventy titles from Daiso-bon owned by the Main Library have been newly digitized and released.
Daiso-bon is a collection of books formerly owned by Daiso (大惣), a book lender run by Sohachi Onoya (大野屋惣八) and his family in Nagoya from the middle of the Edo period to the middle of the Meiji period. Book lenders at the time usually kept books in high demand in their stock and sold the ones out of fashion away to buy new ones. Daiso, however, had a policy not to sell away books they had bought and increased their inventory until the end of the Edo period when they became the largest book lender in Japan. After the arrival of mass production of books in the Meiji period, many book lenders disappeared, Daiso being no exception. Around 1898, Daiso decided to close the business and sold its enormous inventory of 16,734 titles of books, most of which were acquired by the Imperial Library (current National Diet Library), Tokyo Imperial University, Kyoto Imperial University, the Higher Normal School (current University of Tsukuba). Daiso Collection owned by Kyoto University amounts to 3,667 titles, or 13,081 volumes.
Kyoto University started digitizing Daiso-bon in academic year 2020 under the “Project to Build an International Collaborative Research Network for Pre-modern Japanese Texts” by the National Institute of Japanese Literature in which Kyoto University Library participates. This time, 70 titles from that work have been released.
As of November 11, 2020, the Digital Archive provides 1,404,838 images of 17,758 titles.