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        Communication Innovators

        This Media Gallery explores the great advances in long-distance communication that resulted from the innovations of Samuel F. B. Morse, Alexander Graham Bell, and Guglielmo Marconi. Review these images and their descriptions keeping in mind how technology transformed communication over time.

        Telegraph and the Civil War

        This clip from Lincoln@Gettsyburg focuses on President Abraham Lincoln's use of the telegraph during the Civil War. A new tool for the battlefiled, the telegraph connected the Union Army directly to the President.

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        Telegraph

        This illustration shows a telegraph. The telegraph used the Morse code to send messages. This code used long and short sounds that represent letters. The code is named after the person who invented the telegraph, Samuel F. B. Morse.

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        Facsimile of the telephone invented by Alexander Graham Bell

        French School, (20th century) Date: 20th Century.

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        Alexander Graham Bell opening a long distance phone line from New York to Chicago in 1892.

        This photograph shows Alexander Graham Bell opening a long-distance phone line in 1892. The line extended from New York City to Chicago.

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        Guglielmo Giovanni Maria Marconi (Bologna, 1874-Rome, 1937), Italian physicist and inventor, with one of his first telegraphs

        This photograph shows Guglielmo Marconi (1874-1937) and his wireless telegraph. This invention came to be called a radio. The radio in the photograph included a 10-inch coil spark transmitter and a Morse linker. His early radios required large transmitters to send radio waves.

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