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US Arms Race
Main
The first atomic bomb was tested at Alamogordo, New Mexico
July 16, 1945
% complete
US drops two atomic bombs on Japan
August 1945
% complete
America tests the first hydrogen (or thermo-nuclear) bomb
November 1, 1952
% complete
Tests a second H-bomb
March 1, 1954
% complete
The Strategic Defense Initiative (SDI) was proposed by President Reagan
March 23, 1983
% complete
Soviet Union Arms Race
USSR tests their first atomic bomb
August 29, 1949
% complete
Sets off their first H-bomb
November 22, 1955
% complete
Tests world's first Intercontinental Ballistic Missile (ICBM)
August 21, 1957
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The first strategic-missile unit became operational
February 9, 1959
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Tsar Bomba, the largest nuclear bomb ever, is set off is detonated.
October 30, 1961
% complete
US Space Race
Vanguard 1 satellite is launched. It continues to function for 3 years.
March 17, 1958
% complete
The US launches Discoverer XIV, its first camera equipped spy satellite.
August 18, 1960
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Alan B. Shepard becomes the first American in space.
May 5, 1961
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Lunar Orbiter 1 takes the first picture of the Earth from that distance.
August 14, 1966
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Neil Armstrong and Edwin "Buzz" Aldrin become the first men to walk on the Moon
July 20, 1969
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Soviet Union Space Race
Sputnik 1 is launched (the first artificial Earth satellite)
October 4, 1957
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Luna 1 is launched. It is the first man made object to orbit the Sun.
January 2, 1959
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Luna 3 orbits the Moon and photographs 70% of its surface.
October 4, 1959
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Yuri Gagarin orbits the Earth once and becomes the first man in space.
April 12, 1961
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Venera 4 transmits data about the atmosphere of Venus.
October 18, 1967
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