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world history
ORIGINS 4.5 MYA - 3000 BCE
MYA million-year age
RULERS & HIERARCHIES 3000 – 700 BCE
THINKERS & BELIEVERS 700 BCE – 600 CE
WARRIORS, TRAVELERS, & INVENTORS 600 – 1450
INDUSTRY & REVOLUTION 1750 –1914
POPULATION & POWER 1914 – present