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12 mar 1920 ano - first radio

Descrição:

Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission).

Adicionado na linha do tempo:

New timeline

ByAmanda Lopez
14 nov 2019

Data:

12 mar 1920 ano
Agora
~ 104 years ago

Imagens:

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