Around the 1840s

Around the 1840s, photography moved quickly from experiment to public fascination. Louis Daguerre’s daguerreotype, announced in 1839, became the first practical process—producing a single, mirror-like image on a silvered copper plate. Studios opened in Paris, London, and New York, drawing long lines of people eager for their likeness. At nearly the same time, William Henry Fox Talbot in England introduced the calotype, which created a paper negative from which multiple prints could be made. Though less sharp than the daguerreotype, it laid the foundation for all later photographic reproduction. This decade turned photography from alchemy into enterprise—artists, scientists, and travelers adopting it to record faces, architecture, and discovery. What began in isolation now belonged to the world.