The "Ultimate Universe" is a reimagined version of the traditional Marvel Comics universe, created in 2000. It features familiar characters like Spider-Man, Iron Man, and X-Men, but with updated origins and storylines. This universe was designed to attract new readers by providing a fresh start, free from decades of continuity. In the Ultimate Universe, characters often face modern issues and challenges, making them more relatable. The series includes popular titles such as Ultimate Spider-Man and Ultimate X-Men, and it ultimately led to the creation of the Ultimate Marvel crossover event, which further expanded its narrative scope.