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