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1 jul 1920 ano - 1920

Descrição:

La primera emisora de carácter regular e informativo es la estación 8MK (hoy día WWJ) de Detroit, Míchigan (Estados Unidos), en la frecuencia de 1500 kHz.

Adicionado na linha do tempo:

Linea del Tiempo Realidad Virtual

ByChema
3 out 2018

Data:

1 jul 1920 ano
Agora
~ 103 years ago
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