This collection comprises archival materials related to the Cabinet Research Office (Naicho), one of Japan’s principal intelligence organizations. The documents originate from the personal archive of Shigaki Tamiro (1922–2020), a founding member of the Office who later served as its Chief Executive.

This collection contains more than two hundred unpublished diaries, pocket planners, and notebooks kept by Saburo Okita (1914–1993), one of the most prominent postwar economists and economic policymakers of Japan.
Covering the period from the 1930s through the 1990s, these materials include minutes and notes from domestic and international meetings in which he participated in various official capacities, detailed schedules from his overseas missions, and extensive records of his discussions with key figures from around the world.

"行政改革会議" (The Administrative Reform Council) was established during the administration of Prime Minister Ryutaro Hashimoto as an advisory body directly under the Prime Minister. This collection consists of materials related to the Hashimoto administrative reforms, centered on the activities of the Administrative Reform Council, formerly owned by Hiroyasu Fujita (Professor Emeritus, Tohoku University), who served as a member of the Council and as chair of its Subcommittee on Institutional Issues.

This database features 20th-century content covering major events that shaped modern society—World War I, the Great Depression, and World War II.

It is a valuable resource not only for the study of economic thought, but also for those interested in the social forces unleashed by economic developments, as well as early 20th-century history, political science, philosophy, business and economic law, and women's studies.

Sample Topics Covered:

This database contains materials formerly owned by Kazuo Okochi and Mikio Sumiya, who served as presidents of the Council on Social Security System. The database contains a wide range of materials from the Council on Social Security System and other related councils and study groups, as well as surveys and statistics.

Commercial and Trade Relations Between Tsarist Russia, the Soviet Union and the U.S.,1910-1963

This collection of U.S. State Department Central Classified Files relates to commercial and trade relations beginning in the Tsarist Russia period and extending through Khrushchev period in Soviet history. It contains a wide range of materials from U.S. diplomats including materials on treaties, general conditions affecting trade, imports and exports, laws and regulations, customs administration, tariffs, and ports of entry activities.

Module 3 : Diplomacy and Political Secrets, 1869-1950
This is the collection of 4,204 carefully selected and digitized China-related documents from the British Library's holdings of former Indian Ministry documents from the Political and Confidential Sector, Burma Bureau, and Military Sector.
These documents include intelligence materials, reports, memoranda, letters, intelligence logbooks, expedition logbooks, maps, etc., by the former Ministry of India concerning mainland China and the border areas with British India, namely Xinjiang, Tibet, and Yunnan.

It contains declassified documents of the U.S. federal government and is fully text searchable.
It contains classified documents from approximately 60 U.S. government agencies, including the State Department, Department of Defense, CIA, FBI, National Security Council, White House, etc.

The Making of the Modern World (MOMW) is a series of approximately 87,000 European publications on social and economic history spanning 500 years from the mid-15th century to the mid-20th century. The original holdings include The Goldsmiths' Library of Economic Literature at the University of London, the Kress Library of Business and Economics at Harvard University, the Seligman Collection at Columbia University and the Hiroshima University of Economics, and the History of Economics Collection at the University of Kansas.

This is a complete collection of all 67 volumes of the records of the Tokyo Military Tribunal for The February 26 Incident, which were discovered by the Tokyo District Public Prosecutor's Office and long said to "not exist".