Archaeologists surveyed the ‘City of Seven Ravines’ and unlocked clues about prehistoric Eurasia

By Taylor Nicioli, CNN (CNN) — Upon the open grasslands of what is now Kazakhstan, there once stood a Bronze Age settlement that may have served as a center of exchange and power around 1600 BC. The settlement — called Semiyarka and nicknamed “The City of Seven Ravines” for its location overlooking a network of