Yellow Journalism

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The term originated in the competition over the New York City newspaper market between major newspaper publishers Joseph Pulitzer and William Randolph Hearst. At first, yellow journalism had nothing to do with reporting, but instead derived from a popular cartoon strip about life in New York's slums called Hogan's Alley, drawn by Richard F. Outcault. Published in color by Pulitzer's New York World, the comic's most well-known character came to be known as the Yellow Kid, and his popularity accounted in no small part for a tremendous increase in sales of the World. In 1896, in an effort to boost sales of his New York Journal, Hearst hired Outcault away from Pulitzer, launching a fierce bidding war between the two publishers over the cartoonist.

https://history.state.gov/milestones/1866-1898/yellow-journalism