McClure's Magazine was an American monthly publication founded in 1893 by S.S. McClure. It became known for its investigative journalism and in-depth articles, often focusing on social issues and political reform. The magazine played a significant role in the rise of muckraking journalism, highlighting corruption and injustices in society. The magazine featured prominent writers, including Lincoln Steffens and Ida Tarbell, who contributed to its reputation for quality content. McClure's Magazine reached its peak circulation in the early 1900s but eventually ceased publication in 1929. Its legacy continues to influence modern journalism and magazine writing.