| 1868 | North America • USA
| Alexander Gardner completes Union Pacific Railroad portfolio, Across the Continent on the Kansas Pacific Railroad and it is among the first of the major landscape photographic studies of the American west. |
| 1868 | North America • USA
| Carleton E. Watkins photographs the destruction of the San Francisco earthquake that ruptured the Hayward fault at 7:53 AM local time. (21 October 1868) |
| 1869 | North America • USA
| The golden spike is driven at Promontory Point, Utah Territory, linking the Union Pacific and the Central Pacific railroads. This completes the construction of the first Transcontinental railway in North America and the ceremony is photographed by Andrew J. Russell , Alfred Hart and Charles Roscoe Savage. (10 May 1869) |
| 1869 | Europe • France | The first issue of Revue Photographique des Hopitaux de Paris appears. Edited by Dr. A. de Montmeja, a Parisian ophthalmologist and pioneering medical photographer, it is the first medical journal to contain photographs. [Read about] |
| 1869 | Europe • France | Louis Ducos du Hauron publishes Les Couleurs en Photographie, Solution du Probleme that proposes the subtractive color process. |
| 1870 | North America • USA | Henry R. Heyl of Philadelphia patents the Magic lantern projector. |
| 1871 | North America • USA
| 1st Lt. Geo.M. Wheeler of the War Department Corp. of Engineers leads the Explorations and Surveys West of the 100th Meridian with Timothy H. O'Sullivan as the photographer. |
| 1872 | Europe • France | Louis Ducos du Hauron takes the first color photograph showing the town of Angouleme in France. |
| 1872 | North America • USA
| Alexander Gardner photographs a delegation of Sioux Native Americans to Washington DC headed by Red Cloud. (May 1872)
Title | Lightbox | Checklist |
| 1874 | North America • USA
| Cassius M. Coolidge, noted for paints of dogs playing poker, issued a patent for "Processes of Taking Photographic Pictures" (US Patent No: 149,724). The patents is for the use of comic foregrounds which are the forerunner of the comic boards with holes that people can place their heads through for a candid shot becoming part of life-size caricature. (14 April 1874) |
LuminousLint 
@LuminousLint
