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.
- ISBN10 1484640357
- ISBN13 9781484640357
- Publish Date 1 August 2017
- Publish Status Active
- Publish Country US
- Imprint Heinemann Educational Books
- Format Hardcover
- Pages 32
- Language English