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Digital Archive International History Declassified

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  • September 23, 1949

    Statement by President Truman in Response to First Soviet Nuclear Test

    Shortly after the first Soviet nuclear bomb test on August 29, 1949, United States spy planes detected evidence of radioactivity from the blast. In this statement, President Truman revealed to the public for the first time that the Soviet Union had built and successfully detonated a nuclear bomb.

  • 1950

    The List of Sectors (the Structure) of Laboratory No.1 in Ukrainian Institute of Physics and Technology in Kharkov

    The nuclear research activities of UPhTI were concentrated in Laboratory No. 1 which was established as a part of institute in 1946. This archival document illustrates the list of its activities.

  • January 16, 1950

    Minutes of a Special Meeting of the Indian Atomic Energy Commission

    The Indian Atomic Energy Commission meets with the French High Commissioner for Atomic Energy Joliot-Curie to discuss nuclear cooperation between India and France.

  • January 17, 1950

    Minutes of a Special Meeting of the Indian Atomic Energy Commission

    Joliot-Curie, French High Commissioner for Atomic Energy, offers to share technical information with India on the purification of uranium, graphite reprocessing and designs of a low power reactor in exchange for India’s export to France of thorium, beryllium and mineral oil for the manufacture of graphite.

  • February, 1950

    Exchange of Notes, Zhou Enlai and Vyshinshy

    Zhou Enlai and Vyshinshy discuss the exchanges of land made in August 1945 in Manchuria and Inner Mongolia. The relinquishing of Port Arthur (Lüshunkou) and Dalian are mentioned.

  • April 14, 1950

    National Security Council Report, NSC 68, 'United States Objectives and Programs for National Security'

    On US national security policy at the beginning of the Cold War. Includes an assessment of the conflict between the United States and the Soviet Union, as well as US and Soviet nuclear weapons capabilities.

  • June 06, 1950

    Meeting Between prince Farid and English Diplomats

  • July 02, 1950

    Jules Guéron, Record of Discussions with Homi J. Bhabha in London

    Notes from discussions with Homi Bhabha, Chairman of the Indian Atomic Energy Commission, to negotiate the contract for nuclear cooperation between India and France.

  • August 18, 1950

    Jumblat and a Labour Conference

  • April 18, 1951

    Review of Andrei Sakharov about Oleg Lavrentiev’s Paper

    In this document, Andrei Sakharov, "father" of the Soviet thermonuclear bomb program, positively assesses Oleg Lavrientiev's ideas about the Soviet thermonuclear program, which were expressed in Lavrientiev's previously-written letters to Soviet leaders.

  • June 05, 1951

    Secret Letter from Roger Makins to Michael W. Perrin

    Roger Makins of the British Foreign Office informs Michael Perrin, Deputy Controller for Atomic Energy, about negotiations between India and the United States and India and France for nuclear cooperation.

  • August 18, 1951

    Letter from F.C. How to Roger Makins

    F.C. How of the Ministry of Supply replies to Roger Makins of the Foreign Office regarding negotiations for British nuclear cooperation with India.

  • August 24, 1951

    Letter from the French Foreign Ministry to the UK Embassy in Paris on the Franco-Indian Reactor Agreement

    The French Ministry of Foreign Affairs reports that an agreement has been signed for cooperation between India and France for nuclear research.

  • October 15, 1951

    Memorandum of D. F. Ustinov to L. P. Beria on the Use of German Specialists

    Summary report on the use of German specialists for Soviet rocket development

  • October 30, 1951

    Letter from UK Embassy in Paris to London on Franco-Indian agreement

    British Ambassador Oliver Harvey reports a conversation with the Director of the French Atomic Energy Commission Jules Guéron on the details of Franco-Indian nuclear cooperation.

  • 1952

    Mao Zedong's 'Inscription on Smashing the Enemy’s Germ Warfare'

    An inscription made by Mao Zedong related to China's germ warfare allegations against the United States.

  • January 25, 1952

    Letter from John D. Cockcroft to Homi J. Bhabha

    John D. Cockcroft, head of the British Atomic Energy Research Establishment, writes to Homi J. Bhabha, Chairman of the Indian Atomic Energy Commission, informing him that the British will not be assisting India with its beryllium experiements since India has already made agreements with the French Atomic Energy project.

  • December 07, 1952

    King Talal's Visit

  • February 13, 1953

    USSR Council of Ministers Decree, 'On the Plan of Scientific-Research Work on Long-Range Missiles in 1953-1955'

    Council of Ministers decree approving development of several intercontinental missiles

  • November 25, 1953

    Memorandum by V. A. Malyshev, et. al., to the Presidium of the CPSU Central Committee on the Creation of a Long-Range Missile with a Nuclear Warhead

    On the creation of a long-range missile to carry nuclear warheads