A key issue noted for First appearance of Calendar Man. Detective Comics #259 was published by DC Comics on September 1, 1958, as part of a series that began in 1937. Bill Finger and Dave Wood write, and art comes from Charles Paris, Curt Swan and Don Cameron. This 36-page issue features Batman, Dick Grayson, Martian Manhunter, Casey the Cop and Roy Raymond, among 9 characters cataloged on VerseDB.