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During the Qin Dynasty fingerprints were used as evidence for investigations. Fingerprints were recorded using clay.
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Marcello Malpighi was the first person to take note of ridges, spirals, and loops in fingerprints.
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In 1880 Henry Faulds was able to figure who had left fingerprints on a bottle.
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One of the first ever criminal cases that used fingerprints to identify a criminal.
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In 1892 the first book written about fingerprints called "Finger Prints" was published by Sir Francis Galton.
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The Metropolitan Police in London, or Scotland Yard, started its first fingerprint bureau in July 1901.
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One of the first textbooks on fingerprints was published by Frederic A. Brayley in 1910.
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In 1918 Locard wrote that if two fingerprints have 12 matching points they can be identified as belonging to the same person.
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By 1946 the FBI had processed roughly one hundred million fingerprint cards, and 200 million by 1971.
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In 1999, the FBI began storing fingerprint files electronically.