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Henry Bessemer receives a patent for his Bessemer Process for Steelmaking.
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The first successful machine gun had been created, the Gatling Gun, by Richard Gatling. Patented originally in 1861, the outbreak of the American Civil War.
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J.B. Sutherland receives the first patent for a railroad refrigerator car; Joel Tiffany receives a patent the next year.
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Christopher Latham Stoles receives a patent for the first American typewriter. The first typewriter dates back to 1714 in Britain, by Englishman Henry Mill.
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Union Pacific & Central Pacific Railroads cross at Promontory Point, Utah.
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Alexander Graham Bell receives a patent for his new invention that could send human voices over wires and transmit currents of sound.
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Emile Berliner invents the microphone based on "loose contact" between two metal electrodes.
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Thomas Edison releases the first phonograph.
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Eadweard Muybridge is the first American credited with creating the motion picture, "Horse in Motion" in 1878.
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Thomas Edison received a patent for the incandescent lamp that set the precedent for the universal domestic use of light.
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The Home Insurance Building in Chicago is issued a patent.
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George Eastman invented the Kodak Camera and introduced rolled photographic film.