Antiquity
4 recorded milestones at this point in the record.
Teachers in the Ganges plain composed dialogues probing the self, consciousness and the nature of reality beyond ritual practice.
Why it mattered
These texts founded a philosophical tradition that shaped Hinduism, Buddhism and Jainism alike.
Underground channels carry mountain groundwater to arid settlements.
Why it mattered
Cities could grow far from rivers.
Assyrian armies standardised battering rams, siege ramps and engineer corps.
Why it mattered
Made fortified cities conquerable and empire enforceable.
Practitioners bridged missing teeth with hammered gold appliances.
Why it mattered
Early prosthetic dentistry.
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Alps
Greece
Mediterranean
Greece
Lydia
South Asia