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Discovers a light sensitive compound
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By Thomas Wedgewood
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discovers photographic fixing agent
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by Joseph Nicephore Niepce
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by William Henry Fox Talbot
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The word is said by Sir John Herschel
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By William Henry Fox Talbot
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by F Scott Archer (Photo shown was used with the wet process, featuring Theodore Roosevelt)
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By Hamilton Smith
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by R.L. Maddox
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