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3200 BCE
Clay Writings
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3000 BCE
Papyrus
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2500 BCE
Stone Writings
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1500 BCE
Clock (Sundials)
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105
Paper (105 AD)
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850
Gun Powder (850 AD)
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1301
Mechanical Clocks
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1440
Gutenberg's Printing Press
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Computer
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Photography
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Telegraph
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Rotary Printing Press
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Windmills
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Phonograph
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Radio
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Cinema
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Television
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Internet
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Touchscreen