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https://en.wikipedia.org/wiki/News

…imilar purposes. 51 Visible chains of long-distance signaling, known as optical telegraphy , have also been used throughout history to convey limited types of information. These can have ranged from smoke and fire signals to advanced systems using semaphore codes and telescopes. …

https://en.wikipedia.org/wiki/Bell_Labs

…ates and around the world. As a former subsidiary of the American Telephone and Telegraph Company (AT&T), Bell Labs and its researchers have been credited with the development of radio astronomy , the transistor , the laser , the photovoltaic cell , the charge-coupled device (CCD…

https://research.birmingham.ac.uk/en/publications/997d0092-2cc6-4671-9909-769632a3555d

…ew article peer-review 46 Downloads (Pure) Abstract When the first transoceanic telegraph cables were laid in the mid-1800s, rapid communication between continents became possible. The advent of fibre-optic submarine cables in the 1990s catalyzed a global digital revolution. Toda…