Collapse of cities (1 gen 800 anni – 1 gen 900 anni)
Descrizione:
Around 800 - 900 AD, because of overpopulation, lack of resources, increase in warfare, and workers being sacrificed, many cities were abandoned and people migrated to the Northern Highlands.
Aggiunto al nastro di tempo:
Data:
1 gen 800 anni
1 gen 900 anni
~ 100 years