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

22nd February 2018

“2nd March 1791: Claude Chappe sends the first message by semaphore machine” from HistoryPod.net by HistoryPod.net.

Leave a Reply

Your email address will not be published. Required fields are marked *

Please complete the maths by filling in the blank box to prove you're not a robot. * Time limit is exhausted. Please reload CAPTCHA.