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The term "photogenic drawing" refers to early photographic processes. Before photography was formally invented, experiments were conducted to record images chemically. In 1802, Thomas Wedgwood sensitized paper with silver nitrate to capture silhouettes, but he couldn't make the images permanent.1

Later, in 1833, Hercules Florence in Brazil developed a process he called "photography," using silver salt-sensitized paper. However, his work was lost to history until much later.1

William Henry Fox Talbot, unable to draw well, developed his own photographic method by 1835. He created light-sensitive paper using salt and silver nitrate, producing a negative image. His initial fixing method was inadequate, but with help from Sir John Herschel, he improved it using sodium thiosulfate. This process, which he called "photogenic drawing," was published before Louis Daguerre's daguerreotype process became widely known.1

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