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Volumes

1. Vol 1 The Electric Telegraph — Vol 1: The Wire and the Men How a key, a battery, a single iron wire, and a distant electromagnet became the first machine that let a message outrun the horse that carried it. The rival systems of 1837, the collaboration that flattened into one man's name, and the quiet piece of engineering — the relay — that let a signal cross a continent.
2. Vol 2 The Electric Telegraph — Vol 2: The Victorian Internet One wire became a continent's nervous system in a single generation. Western Union and the great consolidation, the transcontinental line that killed the Pony Express in two days, the heartbreaking and heroic Atlantic-cable saga, and the war, the markets, and the news wires that the telegraph rewired forever.