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Arms and Space Race Timeline
US Arms Race
Drop Atomic Bomb on Hiroshima
August 6, 1945
Atomic Energy Commissioner Lewis writes Truman to give priority to H-bomb
President Truman announces his decision to develop the hydrogen bomb
Truman confirms use of nuclear weapons in Korea being consideration.
Royal Air Force fly photographic and radar reconnaissance missions over Soviet
US Space Race
1st Monkey in Space
June 11, 1948
First American Satellite Enters Orbit Around Earth
Man on the Moon
SU Arms Race
Development of Hydrogen Bomb
Soviet physicist Andrei Sakharov moves to Arzamas, the secret weapons lab.
First Soviet atomic bomb [first Soviet Test] is exploded in Kazakhstan.
Soviet Union conducts its second nuclear test, an improved plutonium bomb.
Soviet Premier Georgii Malenkov announces that USSR possesses hydrogen bomb.
SU Space Race
Oct. 4, 1957
Send Dog Up to Space
November 3, 1957
Luna 1 is launched. It is the first man made object to orbit the Sun.
Yuri Gagarin orbits the Earth once and becomes the first man in space.
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