Kuroshima Satoru
University of Tokyo. Historiographical Institute. Associate Professor
Suda Makiko
University of Tokyo. Historiographical Institute. Associate Professor
Nakamura Satoru
University of Tokyo. Historiographical Institute. Assistant Professor

Digital Archives of the Shoho Ryukyu Kuniezu and Wako-zukan

In December 2021, the Historiographical Institute at the University of Tokyo released high-resolution digital images of Shoho's Ryukyu Kuniezu and Wako-zukan, which are included in the Shimazu Family Documents, a national treasure. In this presentation, we will introduce the Ryukyu Kuniezu and the Wako-zukan, as well as the system we have constructed. Shoho's Ryukyu Kuniezu is a copy of a map produced in 1644, depicting the Amami to Yaeyama Islands, which were then the territory of the Ryukyu Kingdom. It is the oldest existing large-scale illustration of Ryukyu in the world and has long attracted attention for its topographical depiction and detailed textual information. With the cooperation of the National Museum of Japanese History, a digital scan was conducted in the museum's exhibition room, and a digital archive was constructed based on this data. The archive is equipped with functions that are highly convenient not only for use by researchers but also for school education and general use. The key point is that the archive can be used by anyone by searching for place names and superimposing them on modern maps. The Wako-zukan is a famous image document depicting Japanese pirates in the 16th century and is also a well-known historical document in Japan. It is considered to have been produced by the first half of the 17th century, and the total length of the scroll is over 5 meters. The digital archive we have constructed not only makes it easy to view high-resolution images of the scrolls but also enables comparison with infrared photographs and searches for 350 people depicted in the scrolls, pursuing the interest of the scrolls themselves and the state of the latest research.