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Camera Obscuras improvements began to happen.
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Johann Heinrich Schulze finds a that silver nitrate darkens in light exposure.
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Joseph Nicéphore Niépce creates first photographic image which required hours of exposure and later faded.
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Pictures created that only needed under 30 minutes of exposure and did not fade.
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William Henry Talbot creates the positive-negative process which allows more than one copy of a picture to be made.
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First advertisement made using a photo in Philadelphia.
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Frederick Scott Archer creates the collodion process which only needs 2-3 seconds of light exposure to create an image.
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Oliver Wendell Holmes invented the stereoscope viewer.
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James Clerk-Maxwell makes a colored film to go over the lens addding a color effect to photos.
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Start of Civil War
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Period: to
Mathew Brady and team cover most of the American Civil war in photographs.
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End of Civil War