1 gen 2500 anni a. C. - First Andean civilizations start popping up

Descrizione:

like the proper big ones, only our book doesn't really talk about them so I guess

A difficulty for Andean civilizations: the Andean mountains made it hard for communicatiofir anyone living on them or around them, so civilizations only really started growing later than, for example, coastal societies. Also, they rarely grew that much (for similar reasons).