In December 1888 the title was changed to "The Argosy". Publication switched from weekly to monthly in April 1894, at which time the magazine began its shift towards adult fiction, on its way to pioneering the pulp-magazine format and eventually becoming the first home of pulp fiction. It eventually published its first all-fiction issue in 1896. The all-fiction "Argosy" launched a new genre of magazines, and is considered the pioneer among pulp magazines. During the period 1906-1907, "The Argosy" was selling 500,000 copies per issue.