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The telegraph was first invented by David Alter.
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Samuel morse made the telegraph even better than David's alter.
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Samuel invented the morse code. Morse code is a method for transmitting information by using dots and dashes.
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Samuel Morse sent the first message and he had said "What Hath God Wrought?"
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Telegraph was first used to coordinate train departures.
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The telegraph was used in the civil war to send messages.
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The first transcontinental telegraph was completed. Meaning communication was made from continent to continent.
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Telegraph services ended in the United States years ago, but in India, they were still widely used to send messages until July 14, 2013.