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

Descrizione:

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

Aggiunto al nastro di tempo:

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Byivan salviulo
30 mar 2022
2
0
365

Data:

2 nov 1920 anni
Adesso
~ 104 years ago
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