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Humphry Davy invents the first electric light, however it was too bright for practical use and did not last long enough.
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Nicéphore Niépce makes the first known photograph, a picture of the courtyard of his house
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Samuel Morse invented the first telegraph at this time. He used it and sent a message from Washington D.C. to Baltimore. The first message to be sent, "What hath God wrought"
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Alexander Graham Bell makes the first telephone call, addressing his assistant “Mr. Watson—come here—I want to see you.”
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Guglielmo Marconi sends a Morse code message of the letter "S" across the Atlantic
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Philo T. Farnsworth makes the first electronic television transmission, which was a horizontal line
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John Atanasoff designs the first digital electronic computer. It would use binary numbers and its data stored in capacitors.
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Arthur Samuel writes a checkers program
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The first computer that is small enough for home use, the Altair, is invented
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Vinton Cerf and Robert Kahn produced the TCP/IP which is the basis for how data is transmitted over the internet