The Avengers

 In the original Avengers comics by Stan Lee Issue #3 Spiderman makes an appearance.  Then for a brief moment Tony Stark makes a tele- visit to "Professor Xavier's school for gifted youngsters"  Does that mean that the Marvel Comics Universe is distantly connected to the X Men?  In the newer films the two universes are separate.  The comic refers to Tales of Suspense #49 "Iron Man and the Angel"