There are two distinct scientific processes that combine to create photography. The first of these processes was optical. The second process was chemical. In 1822, French man Joseph Nicephore Niepce began to produce images with a camera obscura box using material that hardened on exposure to light which was the first of those photomechanical techniques that were soon to revolutionise the graphic arts by eliminating the hand of a man in the reproduction of pictures of all kinds. 1 His intention was to make a picture of the nature that was projected into a box and work out how to fix it so it could be a durable permanent image. He called the results Heliographs. From 1826 to 1839, 1836 being the birth of
Bibliography: http://www.jstor.org/discover/10.2307/3051358?uid=382224611&uid=2&uid=2134&uid=3&uid=382224601&uid=3737536&uid=60&uid=2&uid=70&uid=3&uid=382224601&uid=63&uid=60&sid=21104157609971 Collins, Ross. North Dakota State University, Fargo (N.D) A Brief History of Photography and Photojournalism. http://www.ndsu.edu/pubweb/~rcollins/242photojournalism/historyofphotography.html Hopkinson, Peter. (1971) Role of Film in Development. France: UNESCO. www.unesdoc.unesco.org http://en.wikipedia.org/wiki/Photography http://scphoto.com/html/history.html http://www.environmentalhistory.org/revcomm/ http://books.google.com.cy/books?id=eeJD9tzWwCEC&printsec=frontcover&source=gbs_vpt_buy#v=onepage&q&f=false