Mondo Knows Facts
Chappe's semaphore network spanned France
Movable arms on hilltop towers carried messages faster than any rider Claude Chappe built a line of towers between Paris and Lille in the early 1790s, each with a pivoting arm and indicator boards that operators read by telescope and repeated. A message could reach the capital within minutes in good weather. The network eventually covered thousands of kilometres before the electric telegraph replaced it. It sits in Mondo's history collection, one of 200 facts that each trace back to the reference below.
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Tags: semaphore, communication, france
Chappe's semaphore network spanned France: the short answers
- Where does this come from, and can I check it?
- Movable arms on hilltop towers carried messages faster than any rider. The figure is taken from Science Museum, London, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a history fact?
- Yes. It sits on the History shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.