National Comics #1 introduced Will Eisner's Uncle Sam, a superhero version of the national personification of the United States. Other running features in the title included Wonder Boy, The Barker, and Quicksilver (later revamped by DC Comics as Max Mercury). In addition to Eisner, other comic artists and writers who contributed to National Comics included Jack Cole, Lou Fine, and Reed Crandall. National Comics #18 (Dec, 1941), which hit the stands on November 1941, notably depicted a German attack on Pearl Harbor, a month before the actual Japanese attack on the U.S. naval base.