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The Justice League, or Justice League of America (JLA), is a group of superheroes appearing in American comic books published by DC Comics. The team first appeared in The Brave and the Bold #28 (March 1960). The team was conceived by writer Gardner Fox as a revival of the Justice Society of America.

The Justice League is an all-star ensemble cast of established superhero characters from DC Comics' portfolio. Diegetically, these superheroes usually operate independently but occasionally assemble as a team to tackle especially formidable villains.

The cast of the Justice League usually features a few highly popular characters who have their own solo books, such as Superman, Batman and Wonder Woman alongside a number of lesser-known characters who benefit from exposure. The Justice League was created to boost the profiles and sales of said characters through cross-promotion and helped develop the DC Universe as a shared universe, as it is through teams like the Justice League that the setting's characters regularly interact with each other.