Wolverine is ridiculously popular. The ol'Canucklehead first appeared as a third wheel in a battle between the Hulk and Wendigo, but big things were on the horizon. Wolverine joined the X-Men and became the breakout star of the team. Soon, Wolverine jumped to the head of the popularity line, joining Spider-Man as one of the most popular Marvel superheroes. Wolverine is a massive star, but there are always new fans learning the gospel of Logan.
Source：https://www.cbr.com/wolverine-vital-lore-new-fans/
