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Thomas Edison receives a patent for a two-way telegraph.
Related Wikipedia articles
Thomas Edison
American inventor and businessman (1847–1931)
Thomas Alva Edison was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early…Source: Wikipedia (CC BY-SA)
Patent
Type of legal protection for an invention
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention. In most countries, patent rights fall…Source: Wikipedia (CC BY-SA)
Telegraphy
Long distance transmission of text
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…Source: Wikipedia (CC BY-SA)