United States Hires German Rocket Scientists For V-2 Rocket Development
june 15, 1946
H-bomb Castle-Bravo test
US Atlas Missile Development
jun 11, 1957
Soviet Union Arms Race
USSR takes over Czechoslovakia.
Feb 25, 1948
Aug 29, 1949
First Soviet atomic bomb test. Known as Joe-1 to the West, referencing Joseph Stalin, it was called "First Lightning" (Первая молния, Pervaya molniya) in the USSR.
Oct 30, 1961
The "King of Bombs," a nickname for the Soviet AN602 hydrogen bomb, the most powerful weapon ever detonated.
Cuban Missle Crisis
oct 14, 1962
Test Ban Treaty
Aug 5, 1963
Treaty between UK, USSR and US limits nuclear testing. France and China reject it and develop their own weapons.
US Space Race
U.S. Satellite Launch Announced
Jul 29, 1955
James C. Hagerty, president Eisenhower's press secretary, announced that the U.S. planned to launch "small Earth circling satellites" between 1 July 1957 and 31 December 1958 as part of the International Geophysical Year (IGY)
Explorer 1 reaches orbit lead to the discovery of the van alen radiation belt