1 май 800 г. до нашей эры - Smoke Signal
Описание:
one of the oldest forms of long-distance communication. It is a form of visual communication used over long distance. In general smoke signals are used to transmit news, signal danger, or gather people to a common area.This was used to signal neighbouring
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1 май 800 г. до нашей эры
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~ 2828 г назад