The Golden Age of Comic Books describes an era of American comic books from the late 1930s to 1950s. During this time, modern comic books were first published and rapidly increased in popularity. The superhero archetype was created and many well-known characters were introduced, including Superman (Kal L), Batman (Bruce Wayne), Green Lantern (Alan Scott), The Flash (Jay Garrick), and Wonder Woman (Diana Prince)."
The XXRAY DC Comics Golden Age Edition can be found here.