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May 3, 1961

Preliminary Report on the Results of the Launch of the Third Vostok-3a Satellite-Ship with Pilot Yu. A. Gagarin on Board (Accomplished On April 12, 1961)

Preliminary Report analyzing the results of the Vostok flight of Yuriy Gagarin, prepared by the design bureau in charge of the flight, OKB-1, based in Kaliningrad north of Moscow.

March 24, 1961

Report from D. Ustinov et al to the CPSU CC on Preparations to Launch the Vostok-3A

Report to Central Committee from industrial leaders, military leaders, scientists, and designers on preparations to launch a final automated test flight before actual piloted spaceflight.

November 10, 1960

Report from D. Ustinov et al on Preparations for Two Test Flights of the Vostok-A Prototype

Report from industrial leaders, scientists, and designers to the Central Committee on preparations for two test flights of the Vostok-A prototype before human space mission on Vostok-3A variant

September 10, 1960

Proposal from D. Ustinov et al to the CPSU CC on Human Spaceflight

Formal proposal to Central Committee from a group of industrial leaders, military officials, scientists, and designers to carry out the first human spaceflight by December 1960.

September 16, 1958

Letter, Sergei Korolev to Comrade K.N. Rudnev

Proposal from Sergei Korolev submitted to the State Committee for Defense Technology to develop a spy satellite with a cosmonaut on board.

January 5, 1957

Proposal On the First Launches of Artificial Earth Satellites Before the Start of the International Geophysical Year

Suggesting launch of a smaller and simpler satellite before the beginning of the International Geophysical Year

May 26, 1954

Letter by S. P. Korolev with Enclosed Report by Tikhonravov, 'On the Possibility of the Development of an Artificial Earth Satellite'

Report on simple satellite proposed by Tikhonravov, addressed to Council of Ministers

May 16, 1957

Report of V. M. Riabikov, M. I. Nedelin, K. N. Rudnev, and S. P. Korolev to the CPSU Central Committee

Results of first launch of the R-7 ICB