|**Mesmero Chronology**|||||

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|Marvel Age Introductions by On-Sale Date|||||
|1968|AUG 13|XMN049A|The X-Men|[XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris] [**INTRO**Mesmero]|
|1968|SEP 10|XMN050A|The X-Men|[XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris] [Mesmero]|
|1968|OCT 10|XMN051A|The X-Men|[XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris][Erik the Red][Mesmero]|
|1968|NOV 12|XMN052A|The X-Men|[XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris][Mesmero]|
|1969|MAY 13|XMN058|The X-Men|[XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris][Havok][Banshee][Mesmero]|
|1969|JUL 15|XMN060|The X-Men|[XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl • Polaris] [Havok][Banshee][Quicksilver • Scarlet Witch ][Sauron][Mesmero]|