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3 avr. 1949 - Soviet Union tests atomic bomb

Description:

In 1949, the Soviet Union tested their first atomic bomb. This created a doubt in the American postwar confidence. This led President Harry Truman to order American scientists to start working on the hydrogen bomb.

Ajouté au bande de temps:

19 févr. 2018
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Date:

3 avr. 1949
Maintenaint
~ Il y a 76 ans