The X-Men #4

The X-Men #4, published in March 1964, emerged during the burgeoning Silver Age of Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, this issue introduced the Brotherhood of Evil Mutants and the iconic villain Mastermind. The series was designed to explore themes of prejudice and social alienation through the lens of a school for gifted youngsters, a concept that set the X-Men apart from other superhero teams of the era who often gained their powers through accidents.

Jack Kirby’s kinetic, bold visual style provided a distinct aesthetic for the title, emphasizing the team's status as outcasts. While the series initially struggled to find the same level of commercial dominance as The Fantastic Four or The Amazing Spider-Man, this issue solidified the adversarial dynamic that would become a cornerstone of the X-Men mythos for decades to come, helping establish the foundational narrative framework of the struggle between Charles Xavier's idealism and the militant ideologies of his enemies.