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Diegetically, these superheroes usually operate independently but occasionally assemble as a team to tackle especially formidable villains. The Justice League is an all-star ensemble cast of established superhero characters from DC Comics' portfolio. The team was conceived by writer Gardner Fox as a revival of the Justice Society of America, a similar team from DC Comics from the 1940s which had been pulled out of print due to a decline in sales. The team first appeared in The Brave and the Bold #28 (March 1960). The Justice League is a team of superheroes appearing in American comic books published by DC Comics. The classic cast of the Justice League, from left to right: Green Lantern, the Flash, Superman, Batman, Wonder Woman, Aquaman and the Martian Manhunter.
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