| Europe • France | Louis-Désiré Blanquart-Evrard perfects a process for making positive prints coated with albumen. This is one of the most popular types of photographic prints through the nineteenth century. |
| Europe • France | Louis Jules Duboscq in Paris manufactures the first functioning stereoscopic viewer. |
Europe • Great Britain
| Henry Mayhew publishes London Labor and London Poor with wood engravings based on Daguerreotypes that were taken under the supervision of Richard Beard (1802-1885). |
| North America • USA | Mathew Brady publishes his collection A Gallery of Illustrious Americans. |
North America • USA
| The first issue of The Daguerreian Journal: devoted to the Daguerreian and Photogenic Arts is published in New York. It is the world's first photographic journal. (November 1850) |
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