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1 jan 450 ano antes da era comum - TELÉGRAFO DE TAMBOR: La idea era transmitir la información a través de sonidos que emanaban de un tambor hecho con madera de los árboles. .

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TELECOMUNICACIONES

30 out 2018

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554

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1 jan 450 ano antes da era comum

Agora

~ 2477 years ago

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