Short answers, pulled from the story.
The first photograph used to illustrate a newspaper story appeared on the 25th of June 1848. This image depicted the June Days uprising in Paris and was published as an engraving in L'Illustration two weeks later.
Roger Fenton was the first official war photographer. He documented the effects of conflict on troops and landscapes during the Crimean War despite the slow shutter speeds and cumbersome equipment of the era.
The compact 35mm Leica camera arrived in 1925. This invention, combined with flash bulbs developed between 1927 and 1930, allowed journalists to move with the action and create narratives through photographs alone.
The magazine Life ran from 1936 through the early 1970s. It became the gold standard for photojournalism by publishing beautiful reproductions on oversized pages that allowed photographers to achieve near-celebrity status.
Eddie Adams took the photograph of the street execution of a Viet Cong soldier during the Vietnam War. This image galvanized the anti-war movement in the United States but left Adams haunted by the fact that he was getting paid for showing one man killing another.
Mike Meadows was suspended without pay in 1993 after his picture of a firefighter cooling off in a pool was revealed to be a fabrication. The assignment editor contacted the firefighter who stated he had been asked by Meadows to go to the pool and splash water on his head to create a better shot.