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These were the inventors of the telegraph with needles. This consisted of 5 magnetic needles which would direct the letter and number based on where you pushed the button.
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This year Samuel Morse created a system of communication known as the Morse Code. This was used to send more accurate telegrams.
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This is the year an electromagnetic telegraph was patented and approved. It successfully used Morse Code and only ran on one line.
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In this year a successful telegraph was built from Washington D.C. to Baltimore.
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Morse was successful with convincing Congress to grant him money to be able to create a telegraph that could communicate over a longer distance. They granted him $30,000 for a 50-mile test.
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The first telegram was sent from Washington D.C. to Baltimore and it read "What hath God Wrought".
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The telegraph lines are extended from Baltimore to Philadelphia. In the same year, multiple telegraph companies showed up across the line. This line was connected from New York to Washington D.C., Boston, and Buffalo.
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This was the first year the telegraph was used to coordinate train departures.