The Justice Society of America (JSA) is a superhero team that debuted in All Star Comics #3, published by DC Comics in 1940 during the Golden Age of Comics. Created by editor Sheldon Mayer and writer Gardner Fox, with contributions from artists like Everett E. Hibbard and Sheldon Moldoff, the team featured an ensemble of heroes including Jay Garrick (the original Flash), Alan Scott (Green Lantern), Hawkman, Doctor Fate, the Atom, Sandman, and Hourman. Wonder Woman joined shortly after in All Star Comics #8. The JSA was the first superhero team in comic book history, serving as a precursor to the Justice League.
The team's adventures centered on fighting Axis powers during World War II, embodying patriotic themes and moral fortitude. They operated from a brownstone headquarters in New York City, with rotating leadership and guest appearances by other heroes. The JSA's Golden Age run ended in 1951 due to the Comics Code and shifting cultural interests, but they were revived in the 1960s and 1970s, influencing modern DC continuity through retroactive ties to the multiverse. Their legacy endures as icons of heroism, inspiring countless team-up stories and establishing the template for ensemble superhero narratives.