0 h 49 min, 21 févr. 1788 ans - Francis Ronalds
Description:
Sir Francis Ronalds FRS (21 February 1788 – 8 August 1873) was an English scientist and inventor, and arguably the first electrical engineer. He was knighted for creating the first working electric telegraph.https://en.wikipedia.org/wiki/Francis_Ronalds
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Date:
0 h 49 min, 21 févr. 1788 ans
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~ Il y a 237 ans