In 1826, French inventor Joseph Nicéphore Niépce created the world's oldest surviving photograph from his estate in Saint Loup de Varennes. He used a bitumen coated pewter plate inside a camera obscura pointed out his upstairs window.
Because early chemical materials reacted very slowly to light, the image required an exposure time of at least eight hours. Some historians even suggest the exposure might have lasted several days under constant sunlight.
As the sun moved across the sky during the long exposure, it illuminated both sides of the buildings in the frame. This created impossible lighting conditions that can still be seen in the historic image today.
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Disclaimer: This video is for informational and entertainment purposes only. The story is based on public historical records and visuals are used for illustrative purposes.
