The term "National Treasure" has been used in Japan to denote cultural properties since 1897,[1][2] although the definition and the criteria have changed since the introduction of the term. The written materials in the list adhere to the current definition, and have been designated National Treasures according to the Law for the Protection of Cultural Properties that came into effect on June 9, 1951. The items are selected by the Ministry of Education, Culture, Sports, Science and Technology based on their "especially high historical or artistic value".[3][4] The list presents 107 entries from the Western Wei dynasty to the Meiji period with most dating to the period of Classical Japan and Mid-Imperial China from the 7th to 14th century. The total number of items is higher, however, since groups of related objects have been joined as single entries.
The list contains various types of written materials such as sutra copies, Buddhist commentaries and teachings, poetry and letters. Some of the designated objects originated in China, and were imported at a time when writing was being introduced to Japan. The items in this list were predominantly made with a writing brush on manuscript scrolls, which was the preferred medium until the advent of commercial printing and publishing in the 17th century.[5] In many cases the manuscripts are noted examples of calligraphy. They are housed in temples, museums, libraries or archives, shrines, universities and in private collections.[4] The writings in this list represent about half of the 235 National Treasures in the category "writings". They are complemented by 71 Japanese and 57 Chinese book National Treasures of the List of National Treasures of Japan (writings: Japanese books) and the List of National Treasures of Japan (writings: Chinese books).[4]