What was the first known permanent photograph called

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The first known permanent photograph is called "View from the Window at Le Gras." It was taken by Joseph Nicéphore Niépce in 1826 or 1827 using a process known as heliography. The image depicts the view from a window at Niépce's estate in Saint-Loup-de-Varennes, France. This photograph is considered a groundbreaking achievement in the history of photography, marking the beginning of the medium's development.