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the first dokumented use of carrier pigeons as in the 5th century B.C by Cyrus The Great, and is stil in use if bearly -
a Massage in a bottle was first documented by Theophrastus in about 310 B.C, bottle messeges have never really been used for communication -
the one credited with it's invention is Robert Hooke, is still used by childeren as a toy -
it was invented by Samuel Morse, and though it was one in heavy use it is no longer in mainstream use -
the postcard as we know it was invented in 1865 by Dr. Heinrich Von Stephan, the postcard is no longer in mainstream use -
1967 by Alan Shugart at IBM, it has been mostly phased out exept for some places like some US nuclear missile silos -
it was invented in 1871 by Ray Tomlinson, we still use it alot but it's no longer the primary form off communication -
was in the invented in 1972 Alan kay, is still very much in use but in newer models -
the first handheld phone was invented in 1973 by John F. Mitchell and Martin Cooper
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