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Nov 7, 1546
drawing & writing
Drawing and writing was invented in about 1546. -
Period: Nov 9, 1546 to
Timespan
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sign language
People invented sign language in the year 1620 -
Letters(1653)
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Morse code(1791-1872)
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Phone(1870
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computer(1937
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email(1978)
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Social networks ( Skype, Facebook, Twitter, Facetime etc) (2003)
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Laptop (16 Jan 2005
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iphone
The first iphone was invented in 2007
