1 jan 700000 ano antes da era comum - FIRE
Descrição:
Groups or individuals used this to communicate the need for assistance or to share information about important events. Smoke signals were especially useful as a tracking tool. In a time before maps existed, groups moving from one location to another could follow each other by following “directions” made from smoke.
Adicionado na linha do tempo:
Data:
1 jan 700000 ano antes da era comum
Agora
~ 702490 years ago
Imagens: