Robert Cornelius (1809–1893) was an American pioneer of photography.
Born to a Dutch immigrant, Robert Cornelius attended private school as a youth, taking a particular interest in chemistry. In 1831, he began working for his father specializing in silver plating and metal polishing. He became so well renowned for his work, that shortly after, Cornelius was approached by Joseph Saxton to create a silver plate for his daguerreotype of Central High School in Philadelphia. It was this meeting that sparked Cornelius's interest in photography.
With his own knowledge of chemistry and metallurgy, as well as the help of chemist Paul Beck Goddard, Cornelius attempted to perfect the daguerreotype. Around October 1839, Cornelius took a portrait of himself outside of the family store. The daguerreotype produced shows an off center portrait of a man with crossed arms and tousled hair. This self-portrait of Robert Cornelius is the first known photograph of a human in American history.
Cornelius would operate two of the earliest photographic studios in the U.S. between 1841 and 1843, but as the popularity of photography grew and more photographers opened studios, Cornelius either lost interest or realized that he could make more money at the family gas and lighting company.
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