We live in full Digital Ageand sometimes we make the mistake of thinking that until the end of the 20th century anything similar to the Internet was pure science fiction. But it is not true, because already in the 19th century the telegraph began to allow us to disseminate information in real time, which has earned Morse’s invention the nickname of the Victorian Internet.
optical telegraph. But before Morse invented the telegraph in 1832, there were other attempts to make information travel long distances almost in real time. One of them saw the light in 1792 at the hands of the French inventor Claude Chappe. It is about the optical telegrapha tower with two mobile arms that changed position depending on what was wanted to be communicated, and which today is considered the first practical telecommunications system.
The origins. This type of communication medium was first devised in 1684 by the British scholar Robert Hooke, although he never put his theory into practice. In 1767 Sir Richard Lovell Edgeworth proposed a first design optical telegraph to transmit the results of a race, but it was not until Chappe developed his that they began to become popular.
Claude Chappe and his brothers developed their communication system in 1792, and it was so successful in France that the country created a network of 556 stations that communicated an area of 4,800 kilometers. The system was promoted for commercial use, but Napoleon Bonaparte liked the idea and decided to use it to coordinate his troops over long distances.
How it worked. The system was made up of a mast from which two mobile arms came out. At two meters long each, the arms were so large that they could be seen from great distances, and only two levers were needed to make them move. As we see in the image, the position of the arms would determine the number or letter that was wanted to be transmitted.
The milestone. The first message with the French optical telegraph network was transmitted from Lille to Paris in 1794, and 22 towers were used to carry it across 230 kilometers. It was used for national communications until the 1850s, and the model was modified and used in other countries such as Sweden, Hungary, the United Kingdom, Germany and the Spain of Charles IV.
became famous. In France it enjoyed great popularity, and reached be described in works as important as “The Count of Monte Cristo” by Alexandre Dumas in 1844. But the same desire to quickly and effectively develop communications that drove and led Chappe’s invention to success also ended up being his undoing.
In 1846 and after several failed attempts, Samuel Morse finally managed to convince France to replace it with his new electric telegraph, which could be used at night and in poor visibility. And it ended up prevailing despite the fact that many experts of the time predicted its failure due to the ease with which its lines could be cut, although that is another story.
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