Abstract: The History, Function, and Significance of Semaphore Telegraph Towers

I will conduct research on semaphore telegraph tower systems, the technology which was the fastest method of communication in existence from the 1790s until the invention of the electric telegraph and Morse code in the 1830s. The system consisted of lines of towers which crossed the countryside, set at distances so that each could be seen by the next, with arrangements of mechanical shutters or hinged arms on top. An operator manipulated the shutters or arms to spell a message in code, and the operator of the next tower would observe the message, and repeat it for the following tower’s operator to repeat, and so on.

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