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2 nov 1920 - Sale al aire la primera estación de radio comercial en los Estados Unidos.

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En 1920, KDKA en Pittsburgh, Pensilvania, se convierte en la primera estación de radio comercial de los Estados Unidos.

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Byivan salviulo

30 mars 2022

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Date:

2 nov 1920

Maintenaint

~ Il y a 105 ans

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