Discrimination against superheroes is a common theme and plot element comic books and superhero fiction, usually as a way to explore the issue of superheroes operating in society or as commentary on other social concerns. Often in response to this are Registration Acts, fictional legislative bills that have been plot points used in various comic books and mediums which, when passed into law, enforce the regulation of extra-legal vigilante activity vs. criminal activity, or the mandatory registration of superpowered individuals with the government. The issues that superheroes may be discriminated against, and that the government might seek to regulate the activities and civil rights of superheroes, who are either criminalized or deemed to be a threat to the safety of the general public, who may be denied habeas corpus or detained indefinitely without trial, or viewed as valuable national security resource subject to forced conscription without notice in times of crisis, have also been explored in other comics, such as those featuring DC's Justice Society of America team, series like Watchmen, Astro City, and Powers; the films The Return of Captain Invincible (1983) and The Incredibles (2004); and in role-playing games Brave New World (1999), and Dawn of Legends for Savage Worlds. This kind of plot point is especially rich and extensively explored in the fictional universes of various comic book stories that are published by Marvel Comics. The first mention of the broad concept was in Uncanny X-Men #141 (January 1981). The actual term "Registration Act" was first used in Uncanny X-Men #181 (May 1984). As their names suggest, Mutant Registration Act and Superhuman Registration Act deal with the registration of mutants and superhumans respectively. The Mutant Registration Act has also been featured in both the original X-Men animated series and the X-Men films. Numerous versions of each bill have been proposed at different times and in different jurisdictions in the Marvel Universe. The Superhuman Registration Act is a major plot point in Marvel's 2006 crossover limited series Civil War, which was loosely adapted for the Marvel Cinematic Universe (MCU) in Captain America: Civil War (2016). This version was called the Sokovia Accords. The Accords were mentioned in Spider-Man: Homecoming (2017). The Accords would have a lasting impact in the films Avengers: Infinity War (2018), Ant-Man and the Wasp (2018), and the series WandaVision (2021) before their repeal was revealed in She-Hulk: Attorney at Law (2022). The Registration Acts