-
Period: 250,000 BCE to 10,000 BCE
Paleolithic
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Period: 10,000 BCE to 4000 BCE
Neolithic
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Period: 4000 BCE to 700 BCE
metals
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3500 BCE
Wheel
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Period: 700 BCE to 476 BCE
old age
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Period: 476 to 1453
middle
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700
Paper
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1450
Priting press
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Period: 1453 to
modern age
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Steam machine
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Period: to
contemporary age
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Electric battery
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Light bulb
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Automobile
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Radio
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Computer
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Period: to
current history
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Internet