Template:On This Day (nonfiction)/March 25

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  • 1655: Saturn's largest moon, Titan, is discovered by Christiaan Huygens.

    1655: Saturn's largest moon, Titan, is discovered by Christiaan Huygens.

  • 1857: Printer, bookseller, and inventor Édouard-Léon Scott de Martinville is receives a patent for the phonoautograph, which records an audio signal as a photographic image.

    1857: Printer, bookseller, and inventor Édouard-Léon Scott de Martinville is receives a patent for the phonoautograph, which records an audio signal as a photographic image.

  • 1860: Surgeon and gentleman scientist James Braid dies. He was an important and influential pioneer of hypnotism and hypnotherapy.

    1860: Surgeon and gentleman scientist James Braid dies. He was an important and influential pioneer of hypnotism and hypnotherapy.

  • 1862: Mathematician and engineer Philbert Maurice d’Ocagne born. He will found the field of nomography, the graphic computation of algebraic equations, on charts which he will called nomograms.

    1862: Mathematician and engineer Philbert Maurice d’Ocagne born. He will found the field of nomography, the graphic computation of algebraic equations, on charts which he will called nomograms.

  • 1925: John Logie Baird gives the first public demonstration of moving silhouette images by television at Selfridges department store in London in the first of a three-week series of demonstrations.

    1925: John Logie Baird gives the first public demonstration of moving silhouette images by television at Selfridges department store in London in the first of a three-week series of demonstrations.

  • 1995: Chess player, chess writer, World War II codebreaker and civil servant Philip Stuart Milner-Barry dies. Milner-Barry worked at Bletchley Park during World War II, and was head of "Hut 6", the section responsible for deciphering messages which had been encrypted using the German Enigma machine.

    1995: Chess player, chess writer, World War II codebreaker and civil servant Philip Stuart Milner-Barry dies. Milner-Barry worked at Bletchley Park during World War II, and was head of "Hut 6", the section responsible for deciphering messages which had been encrypted using the German Enigma machine.

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