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aug 2, 1939 - Leo Szilard envia una carta al Presidente Roosevelt

Description:

Szilard escribió una carta para el Presidente, se apoyó en el fisico Albert Einstein para firmar la carta y comunicarle que tenían los medios para crear un arma mas poderosa que las normales.

Added to timeline:

4.7 Objeto 4 Tarea Final

ByLydia Delgado
7 Dec 2018
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Date:

aug 2, 1939
Now
~ 86 years ago

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