1 mayo 800 año aC - Smoke Signal
Descripción:
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
Añadido al timeline:
fecha:
1 mayo 800 año aC
Ahora mismo
~ 2826 years ago
