"Louis Daguerre - ""Boulevard du Temple"", taken by Daguerre in 1838 in Paris, includes the earliest known candid photograph of a person. The image shows a busy street, but because the exposure had to continue for several minutes the moving traffic is not visible. At the lower left, however, a man apparently having his boots polished, and the bootblack polishing them, were motionless enough for their images to be captured."
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