The Ten Mutant Commandments are tattooed on Magneto of the Ultimate Universe's back. ¹⁾

Gambit of the X-Men admires Deadpool's fighting talents so much that he previously paid him off rather than chance a confrontation with him, saying that fighting Deadpool is suicidal. ²⁾

During the Holocaust, Magneto got the number 214782 tattooed on his arm. This number was eventually retconned to 24005 since it could not have been a genuine Auschwitz number. ³⁾

Wolverine once lived under a glacier for 6 months by eating slices of his own arm (with his healing factor growing it back). ⁴⁾

The world's best-selling comic book is X-Men #1, which was released in 1991. It has sold approximately 8.2 million copies worldwide. ⁵⁾

Michael Jackson pushed unsuccessfully for the part of Professor Xavier in the first 'X-Men' film. ⁶⁾

Storm's nipple was accidently shown in a color issue of The Uncanny X-Men that was republished in black and white for “Essential X-Men Vol. 2”. ⁷⁾

Stan Lee did not appear in 'X2: X-Men United' or 'X-Men: First Class,' despite the fact that it was stipulated in his contracts that he participate in any film based on Marvel characters he created. ⁸⁾

In 2010, Marvel provided a unique Deadpool variant cover of the comic “Siege #3” to any comic book retailer who spent $50 on certain 'Blackest Night' comic books released by their competitors at DC. ⁹⁾

X-Men: First Class was initially intended to be Magneto's prequel film, similar to 'X-Men Origins: Wolverine.' It would have shown Magneto's early years as a concentration camp prisoner battling Nazis, as described by the writer as “X-Men” meets “The Pianist”. ¹⁰⁾

Hugh Jackman only agreed to play a cameo as Wolverine in 'X-Men: First Class' for the opportunity to yell, “Go f*ck yourself”. ¹¹⁾

Marvel originally regarded the 'X-Men' comic book to be a second-tier publication, and it was even discontinued in 1969. The series didn't become popular until it was revived in 1976, with a mostly new cast that featured Storm and Wolverine. ¹²⁾