National Archives of Japan (NAJ) was established in July 1971 to preserve important official documents received from Japanese national administrative agencies, provide and exhibit these documents as historical data, and conduct research to build up an efficient reference system of information derived from them. Under the Archives Law implemented in June 1988, NAJ was positioned to serve as a major facility to preserve and provide important official documents as historical data under jurisdiction of Japanese government. Furthermore, under the Archives Law implemented in October 2000, placement of "historically valuable official documents" held by Diet and courts under the authority of NAJ was authorized with an agreement reached between Prime Minister and organizations in charge of documentation as occasion demands. NAJ plays an important role in passing down official documents - historically valuable common asset - to future generations.
In 1938, the Ministry of Health and Welfare was organized with five bureaus: Sanitation Bureau, Social Bureau, Preventive Health Bureau, Physical Strength Bureau and Labour Bureau as well as one external bureau, the Insurance Institute, as an institution which integrated all the "social administration" such as sanitation and labour/welfare/social insurance administrations developed by the Ministry of the Interior Health Bureau and Social Bureau. The labour administration was then transferred to the newly established the Ministry of Labour in 1947. The Ministry of Health and Welfare was reorganized into the Ministry of Health, Labour and Welfare in 2001. Records transferred from the Ministry of Health and Welfare consist of those classified by the Minister's Secretariat as records and those stored at the Social Insurance Agency.
The Minister's Secretariat consists of the departments and bureaus overseeing ge・・・More