March 4th 1880: The first halftone photograph was published in a newspaper.
The Daily Graphic of New York publishes the first halftone, rather than an engraved image. The image was a reproduction of a news photograph. The image features Shantytown dwellings in the city, taken by Henry J. Newton.
William Fox Talbot is credited with the idea of halftone printing. In the early 1850s, he suggested using "photographic screens or veils" in connection with a photographic intaglio process.
Several different kinds of screens were proposed during the following decades. One of the well known attempts was by Stephen H. Horgan while working for the New York Daily Graphic. The first printed photograph was an image of Steinway Hall in Manhattan published on December 2, 1873. The Graphic then published "the first reproduction of a photograph with a full tonal range in a newspaper" on March 4, 1880 (entitled "A Scene in Shantytown") with a crude halftone screen.
The first truly successful commercial method was patented by Frederic Ives of Philadelphia in 1881. Although he found a way of breaking up the image into dots of varying sizes, he did not make use of a screen. In 1882 the German Georg Meisenbach patented a halftone process in England. His invention was based on the previous ideas of Berchtold and Swan. He used single lined screens which were turned during exposure to produce cross-lined effects. He was the first to achieve any commercial success with relief halftones.