Joseph Nicephore Niepce - First Photo 1827, 8 hour exposure

Louis Jacques Mande Daguerre - January 7, 1939 Announces Daguerreotype process to French Acadamy of Sciences.  One of a kind, highly detailed photo reproduction.

William Henry Fox Talbot - 1820's and 1830's experiments with paper sensitized with salts and silver.  Eventually develops a paper negative process, later called Calotype.  Reproducable, but not the quality of Daguerreotype.

Frederick Scott Archer - 1851 - Invented Wet-Plate Collodian Negatives.  Allowed multiple prints that were sharp.  Had to be prepared just before exposure and developed just after exposure.

Blanquart-Evrard 1850 - Conceives idea of using albumen (egg whites) to support print emulsion.

Maxime Du Camp - Wet-plate collodion, The Sphinx and Pyramids, 1851.

Francis Frith - The Pyramids, 1853.

Bisson Brothers - French Alps, 1860

Samuel Bourne - India, 1860s

Francis Frith - Great Wall of China, 1860

Felix Beato - Japan, 1862

Carleton Watkins - Yosemite Valley, 1872

Alexander Gardner - Kansas, 1867

William Henry Jackson with his camera, 1877

William Henry Jackson, Yellowstone, 1873

William Henry Jackson, Colorado, 1880

Fenton, Crimean War, 1854 "Valley of the shadow of war"

Matthew Bradey, Civil War

Alexander Gardner, "Home of a Rebel Sharpshooter", 1863

Alexander Gardner, "A Sharpshooters Last Step", 1863

Julia Margaret Cameron, Mrs Herbert Duckworth, 1872

Julia Margaret Cameron, Ellen Terry at 16, 1864

Julia Margaret Cameron, Sir John Herschel, 1865

Julia Margaret Cameron, Charles Darwin, 1868

Julia Margaret Cameron, Alfred, Lord Tennyson, 1865

Nadar - Sarah Bernhardt c. 1864

Dunmore and Critcherson - The Arctic Circle

Muybridge - Stopping Motion

The Kodak, 1888