One of the biggest urban scandals of the post-Civil War era was the corruption and bribery case of Tammany boss William M. Tweed in 1871 that was uncovered by newspapers. In his first muckraking article "Tweed Days in St. Louis", Lincoln Steffens exposed the graft, a system of political corruption, that was ingrained in St. Louis. While some muckrakers had already worked for reform newspapers of the personal journalism variety, such as Steffens who was a reporter for the "New York Evening Post" under Edwin Lawrence Godkin, other muckrakers had worked for yellow journals before moving on to magazines around 1900, such as Charles Edward Russell who was a journalist and editor of Joseph Pulitzer's "New York World". Publishers of yellow journals, such as Joseph Pulitzer and William Randolph Hearst, were more intent on increasing circulation through scandal, crime, entertainment and sensationalism.