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Gaspard-Félix Tournachon (5 April 1820 to 20 March 1910), known by the pseudonym Nadar or Félix Nadar, was a French photographer, caricaturist, journalist, novelist and balloonist who was a proponent of heavier-than-air flight. In 1858, he became the first person to take aerial photographs. Photographic portraits by Nadar are held by many of the great national collections of photographs.