Portal:Telegraphy
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The electrical telegraph, or more commonly just 'telegraph', superseded optical semaphore telegraph systems, such as those designed by Claude Chappe for the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to almost instantly transmit messages across both continents and oceans, with widespread social and economic impacts.
- "The Magnetic Telegraph" in Littell's Living Age, 4 (34) (4th January, 1845)
- "Electric Telegraphs" in Popular Science Monthly, 3 (August 1873)
- "Field Telegraph" in Popular Science Monthly, 5 (July 1874)
- "Recent Advances in Telegraphy" in Popular Science Monthly, 9 (May 1876)
- "Union of the Telegraph and Postal Service" in Popular Science Monthly, 19 (July 1881)
- "Influence of the Post and Telegraph on International Relations" in Popular Science Monthly, 19 (May 1881)
- "Extension of the Signal Service" in Popular Science Monthly, 20 (February 1882)