The "Golden Age of Comics" refers to a period in the United States from the late 1930s to the early 1950s when comic books became immensely popular. This era saw the introduction of iconic superheroes like Superman, Batman, and Wonder Woman, who captured the imagination of readers and set the foundation for the superhero genre. During this time, comic book sales skyrocketed, and publishers like DC Comics and Marvel Comics emerged as major players in the industry. The Golden Age also coincided with significant historical events, such as World War II, which influenced many comic book stories and themes.