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One of the oldest forms of visual communication. Invented by Greek Historian Polybius in 150 BC. But was first used in 200 BC.
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The communication of handwritten letters began in the 8th century. Letters are less commonly use today, they're mostly now use for bills.
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Pigeons were used to deliver messages from Egypt to farther cities in the 12th century. This type of communication was designed by Sultan Nur-ed-din. (early Twitter)
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Invented by Samuel Morse, the telegraph worked by transmitting electrical signals over a wire laid between stations.
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The first telephone was invented in 1876 by Alexander Graham Bell.
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Created by Ray Tomlinson invented in 1972.
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Invented by Friedhelm Hillebrand and Bernard Ghillebaert. The first sms message was sent in December 3rd, 1992.
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The first social media site named "six degrees" created in 1997.
