События
7000 BC - Drum beats conveyed short messages around jungle, Africa5000 BC - Message sticks carried simple information, Australia2000 BC - Aztec, Babylonians, Chinese, Egyptians wrote in pictures1084 BC - Fall of Troy news relayed by chain of fires to Greece60 BC - Roman gazette Acte Diurna displayed in public places Italy105 - Tshai Lun write on paper made from bark and bamboo, China620 - Chinese court circular called pao appeared, China750 - Books were printed, China1456 - Johann Gutenberg printed books with movable type, Germany1464 - State post delivered mainly office mail, France1615 - Newspaper 'Frankfurter Zeitung' published, Germany1795 - Semaphore system (= flags on posts) took 2 min for 240 km, France1838 - Samuel Morse invented the telegraph, USA1876 - Alexander Graham Bell invented the short distance telephone, USA1880 - Telephone exchange opened in Melbourne, Australia1889 - Almon Strowger patented dial telephone system, USA1890 - Heinrich Hertz built the transmitter and receiver, Germany1892 - Automatic telephone exchange operated, USA1920 - Radio broadcasts of voices began1923 - Wireless radio started broadcasting, Australia1926 - John Baird showed black and white television, Scotland1935 - Tape recorder shown in Berlin, Germany1939 - John Baird showed coloured television, Scotland1948 - Vinyl record used to record music1956 - Channel 9 started broadcasting, Australia1968 - Australia linked to global satellite system1986 - Optical fibre cable laid between Sydney and Melbourne1990 - Phonecards introduced by Telstra , Australia1993 - Digital mobile phones introduced, Australia1998 - Guglielmo Marconi sent a radio morse code message, Italy
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