How messages were written
In the ancient world letters were written on a various different materials, including metal, lead, wax-coated wooden tablets, pottery fragments, animal skin, and papyrus.
the letters were written by writing in feather and ink.
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how messages were sent
Messages could only be carried by hand.
Communication was only as fast as the messengers could go.
A messenger who had to walk or run could only go about 25 miles a day That letter might take up to 30 days to get to its final destination.
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The invention of the telephone
In 1877 and 1878, Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver until the 1980s.
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Published: Jun 8, 2017
Latest Revision: Jun 8, 2017
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