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6 dic 1941 anni - President Roosevelt authorizes the Manhattan Engineering District. The secret U.S. project to build an atomic bomb, later to be called the Manhattan Project, is put under the direction of the Office of Scientific Research and Development.

Aggiunto al nastro di tempo:

14 mar 2020
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0
392

Data:

6 dic 1941 anni
Adesso
~ 83 years ago