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Time lin e

Time lin e. By: Kelsey Allgor. 45,000 BC. Neanderthal man carves a picture on a woolly mammoth tooth. 3500 BC. Sumerians record pictographs representing words on clay tables. 900 BC. Chinese develop postal system to deliver written messages. . 776 BC.

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Time lin e

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  1. Time line By: Kelsey Allgor

  2. 45,000 BC • Neanderthal man carves a picture on a woolly mammoth tooth.

  3. 3500 BC • Sumerians record pictographs representing words on clay tables

  4. 900 BC • Chinese develop postal system to deliver written messages.

  5. 776 BC • Homing pigeons carry message about the Olympics for ancient Greeks.

  6. 105 • Chinese make paper from rags.

  7. 450 • Chinese develop postal system to deliver written messages.

  8. 900 • Byzantine ship captains use colored flags to send signals to one another across the water.

  9. 1450 • Johann Gutenberg invents a printing press using movable metal type.

  10. 1609 • Early newspapers are published in germany.

  11. 1792- • Mechanical semaphore is invented in France.

  12. 1830s • Ada Byron, a mathematician, writes the worlds first computer program for a computing machine designed by Charles Babbage but never built.

  13. 1837 • Samuel Morse invents a telegraph that can send short and long beeps called dots and dashes.

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