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Period: to
The Atomic Bomb
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Niel Bohr Announces the Discovery of Fission
The announcement of nuclear fission opened a gateway to the building of the Atomic Bomb. -
Scientists discover how to extract uranium-235
Scientist Harold Urey and his colleagues figured out how to extract U-235 through the principle of gaseous diffusion -
FDR Approves the Development of the Atomic Bomb
This was the beginning of the end for the Japanese cities of Hiroshima and Nagasaki. -
$2 Million authorized to build the Atomic Bomb
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YALTA Conference/ the Cold War Begins
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Period: to
Cold War
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President Truman Approves the use of the Atomic Bomb
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Little Boy Dropped on Hiroshima
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Russia declares war on Japan
Victory in Europe. Germany surrenders to the Red Army in Berlin. -
Fatman Dropped on Nagasaki
The Atomic Bomb "Fatman" killed an estimated 40,000 people. -
Atomic Energy Act Made
After the power of the atomic bomb was shown, congress made the Atomic Energy Act. It's the fundamental U.S. law which lays the boundaries for both civilian and military uses of nuclear materials -
"Iron curtain/ Sinews of Peace" speech by Winston Churchill
Winston Churchill delivered the "Sinews of Peace" speach that dropped the Iron Curtain that divided Europe for 44 years. -
Operation Crossroads with Test Able
First public demonstration of America's atomic arsenal above ground. -
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Truman Doctrine created
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NATO ratified
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Russia tests their first atomic bomb
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Truman approves H-bomb
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Federal Civil Defense Administration established
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A-Bombs Developed by Britain
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Period: to
Nuclear Arms Race
The race between the US and the USSR (Russia) to gain the most powerful arsenal of h-bombs and missiles. -
Ike's "Atoms for Peace" speech
Atoms for Peace Speech Transcript
Eisenhower's speech confronting the government about nations stockpiling and testing atomic bombs and other weapons. -
H-bomb Castle-Bravo test
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Warsaw Pact Formed
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Castro Takes Over Cuba
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France developed A-Bombs
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Kennedy Elected
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Bay of Pigs Invasion
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Berlin Wall Construction Begins
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Missiles Removed from Cuba and Turkey
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Nuclear Test Ban Treaty Ratified
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A-Bombs Developed by China
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President Nixon extends Vietnam War to Cambodia
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SALT I Signed
SALT I was made to repalce the Inerim Agreement, and set broad limits on strategic offensive weapons systems. -
Vietnam Peace Treaty Signed
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U.S. helps overthrow Chile government
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Vietnam War Ends
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SALT II Signed
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President Reagan proposes Strategic Defense Initiative
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Mikhail Gorbachev ascends to power in Soviet Union
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Reagan and Gorbachev resolve to remove all intermediate nuclear missiles from Europe
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Reagan and Gorbachev agree to sign a treaty that removes all medium and short-range nuclear missiles
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Berlin Wall Falls
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Communist governments fall in Czechoslovakia, Bulgaria, and Rumania
The Soviet empire falls.
