1 mai 800 av. J.-C. - Smoke Signal
Description:
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
Ajouté au bande de temps:
Date:
1 mai 800 av. J.-C.
Maintenaint
~ Il y a 2828 ans