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Period: to
Cold War events
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Yalta Conference and the Potsdam Conference
The Yalta Conference and the Potsdam Conference had laid down some principles concerning the immediate post-war treatment of Germany. The Western nations and the Soviet Union interpreted these principles in different ways, conflict started as a consequence of this. -
First atomic bomb
The United states drops atomic bomb on Hiroshima (20 kiloton bomb 'Little Boy' kills 80,000). -
Second atomic bomb
The United States drops atomic bomb on Nagasaki (22 kiloton 'Fat Man' kills 70,000) -
Winston Churchill speech
"Sinews of Peace" Iron Curtain Speech by Winston Churchill - "an "iron curtain" has descended on Europe" -
Cold war spies
Truman's Loyalty Program created to catch Cold War spies -
Russia tested its first atomic bomb
Russia tested its first atomic bomb. -
New Ruler of China
Communist Mao Zedong takes control of China and establishes the People's Republic of China. -
Truman approved H-bomb development
Truman approved H-bomb development -
Korean War begins
Korean War begins. Stalin supports North Korea who invade South Korea equipped with Soviet weapons. -
Federal Civil Defense Administration established
Federal Civil Defense Administration established. -
A-bombs developed by Britain
A-bombs developed by Britain. -
Atomic bombs tested
Nuclear Arms Race atomic test series of 11 explosions at Nevada Test Site. -
Korean War ends
Korean War ends. -
H-bomb test
H-bomb Castle-Bravo test. -
Tanks sent to Poland
USSR sent tanks into Poznan, Poland, to suppress demonstrations by workers. -
Send military to Afghanistan
USSR sent military aid to Afghanistan. -
Sputnik launched into orbit
Sputnik launched into orbit. -
Explorer I launched
Explorer I launched. -
Withdrawal of troops from Berlin
Khrushchev demands withdrawal of troops from Berlin. -
A-bombs developed by France
A-bombs developed by France. -
Nuclear Test Ban Treaty ratified
Nuclear Test Ban Treaty ratified.