The George Eastman House has done a series of videos about the major steps of the Photographic Process ending with the Gelatin Silver Print. Interesting to me that it does not go into Digital which I would consider the biggest, most important change to the medium since it was created.
The Dageurrotype, The Collodion Process, The Albumen Print, The Woodburytype, The Platium Print, and The Gelatin Silver Print.
