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Samuel Morse, illustration. Samuel Morse and Charles Thomas Jackson on the ship Sully. Morse during these discussions has the idea of the single wired telegraph, 1832. Engraving in: Les Merveilles de la Science (The Wonders of Science), by Louis Figuier, France, 1868. (KEYSTONE/SCIENCE PHOTO LIBRARY/CCI ARCHIVES/SCIENCE PHOTO LIBRARY)