|**Living Diamond Chronology**|||||

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|Marvel Age Introductions by On-Sale Date|||||
|1967|OCT 10|XMN039B|The X-Men|[Origins of the X-Men • Cyclops][Living Diamond]|
|1967|NOV 9|XMN040B|The X-Men|[Origins of the X-Men • Cyclops][Living Diamond]|
|1967|DEC 12|XMN041B|The X-Men|[Origins of the X-Men • Cyclops][Living Diamond]|
|1968|JAN 9|XMN042B|The X-Men|[Origins of the X-Men • Cyclops]{living Diamond]|