A 200-year-old image of a leaf, which lay for years in an album, may be the world's oldest photograph, according to research by a scholar.
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Leaf could be world's oldest photograph
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Visitors take pictures
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Human remains found in field
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A NEW study has been looking at the effect
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Oldest human footprints found
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Mammoth remains still in storage
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Display celebrates over 20 years of photographic portraiture by Jillian Edelstein
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Plants and Animals confirm more live dates
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Cave paintings 'took up to 20,000 years to complete'
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World approaching historic crossroad
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Polar ice cap during last ice Age may not have been as extensive as previously thought
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Kazakh woman may be oldest person by years
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Modern disease infected Nubian mummies long ago
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Scientists move boundary dates for prehistoric Quaternary age by 800,000 years
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Students photgraphy work on display
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Oldest bird in wild survives tsunami
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Change organises photo exhibition