Communiation

The History of communication

  • 1800 BCE

    Chinese smoke signals

    Chinese smoke signals
    There are forms of long-distance communication not based on words. The smoke signals used by American Indians are of this kind But such devices are only capable of conveying very limited prearranged signals, such as 'danger' or 'victory'.
  • 215 BCE

    The Greek way

    The Greek way
    Polybius, a Greek historian invented a system of converting a Greek alphabetic characters into numeric characters. This enabled messages to be easily sent by coded torch.
  • Jun 12, 1150

    Carrier pigeons

    Carrier pigeons
    Although commonly referred to as “flying rats” this bubble headed birds were once treasured as yesteryear’s dutiful postmen.
  • Mar 13, 1440

    Gutenberg printing press

    Gutenberg printing press
    This brilliant invention paved the road for the Renaissance, Reformation and Scientific Revolutions and helped the spread of learning to the masses.
  • The Morse code

    The Morse code
    Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
  • The typewritter

    The typewritter
    A typewriter is a mechanical or electro-mechanical machine for writing in characters similar to those produced by printer's movable type by means of keyboard-operated types striking a ribbon to transfer ink or carbon impressions onto paper. Typically one character is printed on each key-press. The machine prints characters by making ink impressions of type elements similar to the sorts used in movable type letterpress printing.
  • The telephone

    The telephone
    In 1876, Scottish emigrant Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice. This instrument was further developed by many others. The telephone was the first device in history that enabled people to talk directly with each other across large distances.
  • The radio

    The radio
    The term "radio" is derived from the Latin word "radius", meaning "spoke of a wheel, beam of light, ray". It was first applied to communications in 1881 when, at the suggestion of French scientist Ernest Mercadier, Alexander Graham Bell adopted "radiophone" (meaning "radiated sound") as an alternate name for his photophone optical transmission system. However, this invention would not be widely adopted.
  • The internet

    The internet
    The origins of the Internet date back to research commissioned by the United States federal government in the 1960's to build robust, fault-tolerant communication via computer networks.[1] The primary precursor network, the ARPANET, initially served as a backbone for interconnection of regional academic and military networks in the 1980's.
  • The television

    The television
    Television became available in crude experimental forms in the late 1920's, but these did not sell to the public. After World War II, an improved form of black-and-white TV broadcasting became popular in the United States and Britain, and television sets became commonplace in homes, businesses, and institutions.