timeline By frenchfry May 22, 600 Hindu-Malayan empires write legal documents on copper plate scrolls, and write other documents on more perishable media May 22, 751 Paper is introduced to the Muslim world after the Battle of Talas May 22, 1305 The Chinese develop wooden block movable type printing May 22, 1450 Johannes Gutenberg finishes a printing press with metal movable type May 22, 1520 Ships on Ferdinand Magellan's voyage signal to each other by firing cannon and raising flags. May 22, 1793 line Claude Chappe establishes the first long- distance semaphore telegraph May 22, 1831 Joseph Henry proposes and builds an electric telegraph May 22, 1835 Samuel Morse develops the Morse code May 22, 1843 Samuel Morse builds the first long distance electric telegraph line May 22, 1844 Charles Fenerty produces paper from a wood pulp, eliminating rag paper which was in limited supply May 22, 1849 Associated Press organizes Nova Scotia pony express to carry latest European news for New York newspapers May 22, 1876 Alexander Graham Bell and Thomas A. Watson exhibit an electric telephone in Boston May 22, 1877 Thomas Edison patents the phonograph May 22, 1901 Guglielmo Marconi transmits radio signals from Cornwall to Newfoundland May 22, 1925 John Logie Baird transmits the first television signal May 22, 1942 Hedy Lamarr and George Antheil invent frequency hopping spread spectrum communication technique May 22, 1947 Douglas H. Ring and W. Rae Young of Bell Labs proposed a cell- based approach which leads to "cellular phones" May 22, 1949 Claude Elwood Shannon, the "father of information theory", mathematically proves the Nyquist–Shannon sampling theorem May 22, 1958 Chester Carlson presents the first photocopier suitable for office use May 22, 1963 First geosynchronous communications satellite is launched, 17 years after Arthur C. Clarke's article May 22, 1966 Charles Kao realizes that silica- based optical waveguides offer a practical way to transmit light via total internal reflection May 22, 1969 The first hosts of ARPANET, Internet's ancestor, are connected. May 22, 1971 Erna Schneider Hoover invented a computerized switching system for telephone traffic. May 22, 1977 Donald Knuth begins work on TeX May 22, 1989 Tim Berners- Lee and Robert Cailliau built the prototype system which became the World Wide Web at CERN May 22, 1991 Anders Olsson transmits solitary waves through an optical fibre with a data rate of 32 billion bits per second May 22, 1992 Neil Papworth sends the first SMS (or text message). May 22, 2005 Tsai Lun invents paper Period: May 22, 2005 to May 22, 1992 timeline