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The article reviews the efforts of French scientist Claude Chappe in the development of communication systems, particularly the optical telegraph he invented in 1792. His goal was to accelerate the transmission of information and to save the French Revolution from interference by European armies. He built signal towers controlled by wooden arms to display symbols, which allowed messages to be transmitted over long distances during wartime and facilitated rapid communication before the inventions of the telephone and radio. Claude Chappe committed suicide in 1805 due to health problems and psychological burdens, but his system significantly contributed to the advancement of communication methods and was used for decades before being replaced by the electric telegraph.
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