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  1. Terminology

    The word telegraph (from Ancient Greek: τῆλε (têle) 'at a distance' and γράφειν (gráphein) 'to write') was coined by the … See more

    Telegraphy - Wikipedia

    • Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and sophisticated as in China, w… See more

    History

    Passing messages by signalling over distance is an ancient practice. One of the oldest examples is the signal towers of the Great Wall of China. In 400 BC, signals could be sent by beacon fires or drum beats. By 200 BC … See more

    Social implications

    Optical telegraph lines were installed by governments, often for a military purpose, and reserved for official use only. In many countries, this situation continued after the introduction of the electric telegraph. Starting in … See more

    Popular culture

    The optical telegraph was quickly forgotten once it went out of service. While it was in operation, it was very familiar to the public across Europe. Examples appear in many paintings of the period. Poems include "Le Telégraphe… See more

    Further reading

    • Britton, John A. Cables, Crises, and the Press: The Geopolitics of the New International Information System in the Americas, 1866–1903. (University of New Mexico Press, 2013).
    • Fari, Simone. Formative … See more

    External links

    "Telegraph" . Encyclopædia Britannica (11th ed.). 1911.
    Telegraph at the Encyclopædia Britannica
    The Porthcurno Telegraph Museum (Archived 27 September 2013 at the Wayback Machine)—The biggest telegraph s… See more

     
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  2. Wireless telegraphy - Wikipedia

     
  3. Telegraphy in the United States - Wikipedia

  4. Telegraphy - Simple English Wikipedia, the free encyclopedia

  5. Morse Code & Telegraph: Invention & Samuel Morse …

    Nov 9, 2009 · Developed in the 1830s and 1840s by Samuel Morse and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid...

  6. Telegraph | Invention, History, & Facts | Britannica

    Telegraph, any device or system that allows the transmission of information by coded signal over distance. The term most often refers to the electric telegraph, which was developed in the mid-19th century and for more than 100 years was …

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  8. Development of the telegraph industry - Encyclopedia …

    In 1924 the American Telephone & Telegraph Company (AT&T) introduced a printing telegraph system called the Teletype, which became widely used for business communication. The unit consisted of a typewriter keyboard and a …

  9. The Origins of the Telegraph - The Franklin Institute

    Jun 30, 2023 · Flags, sounds, smoke, or lights would only go as far as they could be seen or heard. While the idea for a machine dates back to the 1700s, it wasn’t until the 19th century that the telegraph – a machine that transmits text across …

  10. History and Development of the Telegraph -- Telegraphy

  11. The History of the Electric Telegraph and Telegraphy

    Oct 13, 2019 · The electric telegraph is a now outdated communication system that transmitted electric signals over wires from location to location and then translated into a message. The non-electric telegraph was invented by Claude …

  12. Electrical telegraph - Wikipedia

    Electrical telegraphy is a point-to-point text messaging system, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early …

  13. telegraph - Wiktionary, the free dictionary

  14. Who Invented the Telegraph? - HowStuffWorks

  15. Samuel Morse and the Invention of the Telegraph - ThoughtCo

  16. Timeline of North American telegraphy - Wikipedia

  17. telegraphy - Wiktionary, the free dictionary

  18. Telegraphy - New World Encyclopedia

  19. telegraph summary | Britannica

  20. Optical telegraph - Wikipedia

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  22. Telegraphy - WikiMili, The Best Wikipedia Reader

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