Do you know that only 200 years ago, the only way that one person could send a message to another person was by letter or messenger? It's hard to imagine now, with our smartphones and computers at our fingertips. From the invention of the telegraph in the 1830s all the way through to the wearable technology of the present day, this book charts the incredible history of telecommunications.
This is Book 2 in the The History of Technology Series. See all The History of Technology books here.
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Chris Oxlade is an experienced author of non-fiction books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.
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