Year 7: 1969
1969 X-Men Comics & Appearances: X-Men #54-65, Sub-Mariner #14
Neal Adams saves the X-Men! Roy Thomas returns! So do the Sentinels & Professor X! Magneto gets a face! Havok, Sauron, Sunfire, the Savage Land mutates (& the Living Monolith...) debut!
037 - Year 7 Cover: X-Men #56