Iron Age
5 recorded milestones at this point in the record.
City-states such as Tyre, Sidon and Byblos built cedar ships and ran regular routes across the Mediterranean, trading dye, glass, timber and metals.
Why it mattered
Phoenician shipping carried the alphabet west and made the Mediterranean a single commercial world.
The Zhou overthrew the Shang and justified their rule with the idea that heaven withdraws its mandate from unjust kings.
Why it mattered
It gave East Asia a political theory in which rulers can legitimately be replaced — a template used for three thousand years.
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.
Small workshops taught a twenty-two letter consonantal script that could be learned in weeks rather than years of sign memorisation.
Why it mattered
Writing left the temple bureaucracy and became a merchant and administrative skill.
Gently sloping tunnels carried mountain groundwater to desert settlements without evaporation loss.
Why it mattered
Allowed cities to grow in arid basins.
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Near East
West Africa
Central Europe
Persia
Andes
Andes