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jan 1, 250 BC - Señales de humo y mensajes por tambores

Description:

Utilizados para enviar información a media y larga distancia, se podía advertir de alertas o ataques enemigos.

Added to timeline:

Bea tecnología

ByBeatriz
30 Sep 2018
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Date:

jan 1, 250 BC
Now
~ 2277 years ago
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