Joseph Nicephore Niepce brought examples of his process, called heliography (Greek words for sun and writing) to London.
January 7, 1839
Daguerre's invention was announced to the French Academy of Science, emphasizing its originality.
August 19, 1839
On this day photography was presented to the world at a joint meeting of the Academy of Science and the Academy of Fine Arts in Paris.
Henry Fox Talbot presented his photographic process he called Calotype (Greek kalos - "beauty"). This process allowed to make multiple photographs from a single negative.
The cyanotype technique was first developed by Sir John Herschel.
"The Pencil of Nature"
1844 - 1846
Henry Fox Talbot published the book of his photographs, titled "The Pencil of Nature, in six sections. It was a first book using silver gelatin photographs.
The Wet Collodion Process
This process was invented by Frederick Scott Archer, which can give you a negative plate to make paper prints, a direct positive plate called ambrotype, and another direct positive plate called tintype.
The Silver Gelatin Process
Richard Leach Maddox first published his findings in the British Journal of Photography.
Portrait for Police Purposes
1880 - 1889
Alphonse Bertillon developed and standardized mug shot photography for identification.