2nd March 1791: Frenchman Claude Chappe sends the first message by semaphore machine

Chappe was born into a wealthy family in 1763 and originally trained as a member of the church. However, the turmoil of the French Revolution meant that he was unable to continue in his position and he returned home to focus on science. Working with his brothers, Chappe began to experiment with optical telegraph designs. Chappe was not the first person to attempt to create a system of long-distance communication. The English scientist Robert Hooke had presented a proposal a century earlier, b...