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May 20, 700
7th century Hindu-Malayan empires write legal documents on copper plate scrolls, and write other documents on more perishable media
7th century Hindu-Malayan empires write legal documents on copper plate scrolls, and write other documents on more perishable media -
May 20, 751
751 Paper is introduced to the Muslim world after the Battle of Talas
751 Paper is introduced to the Muslim world after the Battle of Talas -
May 20, 1305
1305 The Chinese develop wooden block movable type printing
1305 The Chinese develop wooden block movable type printing -
May 20, 1450
1450 Johannes Gutenberg finishes a printing press with metal movable type
1450 Johannes Gutenberg finishes a printing press with metal movable type -
May 20, 1520
1520 Ships on Ferdinand Magellan's voyage signal to each other by firing cannon and raising flags.
1520 Ships on Ferdinand Magellan's voyage signal to each other by firing cannon and raising flags. -
1793 Claude Chappe establishes the first long- distance semaphore telegraph line
1793 Claude Chappe establishes the first long- distance semaphore telegraph line -
1831 Joseph Henry proposes and builds an electric telegraph
1831 Joseph Henry proposes and builds an electric telegraph -
1835 Samuel Morse develops the Morse code
1835 Samuel Morse develops the Morse code -
1843 Samuel Morse builds the first long distance electric telegraph line
1843 Samuel Morse builds the first long distance electric telegraph line -
1844 Charles Fenerty produces paper from a wood pulp, eliminating rag paper which was in limited supply
1844 Charles Fenerty produces paper from a wood pulp, eliminating rag paper which was in limited supply -
1849 Associated Press organizes Nova Scotia pony express to carry latest European news for New York newspapers
1849 Associated Press organizes Nova Scotia pony express to carry latest European news for New York newspapers -
1876 Alexander Graham Bell and Thomas A. Watson exhibit an electric telephone in Boston
1876 Alexander Graham Bell and Thomas A. Watson exhibit an electric telephone in Boston -
1877 Thomas Edison patents the phonograph
1877 Thomas Edison patents the phonograph -
1889 Almon Strowger patents the direct dial telephone
1889 Almon Strowger patents the direct dial telephone -
1901 Guglielmo Marconi transmits radio signals from Cornwall to Newfoundland
1901 Guglielmo Marconi transmits radio signals from Cornwall to Newfoundland -
1925 John Logie Baird transmits the first television signal
1925 John Logie Baird transmits the first television signal -
1942 Hedy Lamarr and George Antheil invent frequency hopping spread spectrum communication technique
1942 Hedy Lamarr and George Antheil invent frequency hopping spread spectrum communication technique -
1947 Douglas H. Ring and W. Rae Young of Bell Labs proposed a cell- based approach which leads to "cellular phones"
1947 Douglas H. Ring and W. Rae Young of Bell Labs proposed a cell- based approach which leads to "cellular phones" -
1949 Claude Elwood Shannon, the "father of information theory", mathematically proves the Nyquist–Shannon sampling theorem
1949 Claude Elwood Shannon, the "father of information theory", mathematically proves the Nyquist–Shannon sampling theorem -
1958 Chester Carlson presents the first photocopier suitable for office use
1958 Chester Carlson presents the first photocopier suitable for office use -
1963 First geosynchronous communications satellite is launched, 17 years after Arthur C. Clarke's article
1963 First geosynchronous communications satellite is launched, 17 years after Arthur C. Clarke's article -
1966 Charles Kao realizes that silica- based optical waveguides offer a practical way to transmit light via total internal reflection
1966 Charles Kao realizes that silica- based optical waveguides offer a practical way to transmit light via total internal reflection -
1969 The first hosts of ARPANET, Internet's ancestor, are connected.
1969 The first hosts of ARPANET, Internet's ancestor, are connected. -
1971 Erna Schneider Hoover invented a computerized switching system for telephone traffic.
1971 Erna Schneider Hoover invented a computerized switching system for telephone traffic. -
1977 Donald Knuth begins work on TeX
1977 Donald Knuth begins work on TeX -
1989 Tim Berners- Lee and Robert Cailliau built the prototype system which became the World Wide Web at CERN
1989 Tim Berners- Lee and Robert Cailliau built the prototype system which became the World Wide Web at CERN -
1991 Anders Olsson transmits solitary waves through an optical fibre with a data rate of 32 billion bits per second
1991 Anders Olsson transmits solitary waves through an optical fibre with a data rate of 32 billion bits per second -
1992 Neil Papworth sends the first SMS (or text message).
1992 Neil Papworth sends the first SMS (or text message). -
Period: to
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105 Tsai Lun invents paper
105 Tsai Lun invents paper