Captain America is a fictional superhero appearing in American comic books published by Marvel Comics. Created by writer-editor Stan Lee and artist Jack Kirby, the character first appeared in Timely Comics' Captain America Comics #1 (March 1941). The character was Timely Comics' most popular character during the 1940s and remained popular in the 1950s. After a brief period of decline in the 1960s, the character was revived in the 1970s and has remained popular since.
Captain America is the alter ego of Steve Rogers, a frail young man who was enhanced to the peak of human perfection by an experimental serum to aid the United States government's efforts in World War II. Rogers was a member of the superhero team the Avengers and has fought alongside other superheroes such as Spider-Man, Iron Man, Thor, and Hulk.
Captain America is a symbol of American patriotism and is often seen as a representative of the United States. The character has been adapted into several live-action films, television series, and video games.