The Nineteenth Century: The Invention of Photography In 1839 a new means of visual representation was announced to a startled world: photography . Although the medium was immediately and enthusiastically embraced by the public at large , photographers themselves spent the ensuing decades experimenting with techniques and debating the nature of this new invention. The works in this section suggest the range of questions addressed by these earliest practitioners. Was photography best understood as an art or a science? What subjects should photographs depict, what purpose should they serve, and what should they look like? Should photographers work within the aesthetics established in other arts, such as painting, or explore characteristics that seemed unique to the medium? This first generation of photographers became part scientists as they mastered a baffling array of new processes and learned how to handle their equipment and material. Yet they also grappled wit