|**The Leader Chronology**|||||

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|Marvel Age Introductions by On-Sale Date|||||
|1964|SEP 01|TTA062B|Tales to Astonish|[Incredible Hulk][Captain America] [**INTRO**The Leader][Chameleon]|
|1964|OCT 01|TTA063B|Tales to Astonish|[Incredible Hulk][Chameleon][The Leader]|
|1964|NOV 03|TTA064B|Tales to Astonish|[Incredible Hulk][Chameleon][The Leader]|
|1964|DEC 03|TTA065B|Tales to Astonish|[Incredible Hulk][The Leader]|
|1965|JAN 5|TTA066B|Tales to Astonish|[Incredible Hulk][Chameleon][The Leader]|
|1965|MAR 4|TTA068B|Tales to Astonish|[Incredible Hulk][The Leader]|
|1965|APR 1|TTA069B|Tales to Astonish|[Incredible Hulk][The Leader]|
|1965|APR 8|AVN017|The Avengers|[AVNROS•Captain America • Hawkeye • Quicksilver • Scarlet Witch] • xo[Incredible Hulk][Mole Man][Minotaur][The Leader]|
|1965|MAY 4|TTA070B|Tales to Astonish|[Incredible Hulk][Neptune][The Leader]|
|1965|JUN 1|TTA071B|Tales to Astonish|[Incredible Hulk][The Leader]|
|1965|JUL 1|TTA072B|Tales to Astonish|[Incredible Hulk][The Leader]|
|1965|AUG 3|TTA073B|Tales to Astonish|[Incredible Hulk][The Watcher][The Leader]|
|1965|SEP 2|TTA074B|Tales to Astonish|xo[The Watcher][The Watcher][The Leader]|
|1969|FEB 11|HLK115|Incredible Hulk|[][The Leader]|
|1969|MAR 11|HLK116|Incredible Hulk|[The Super-Humanoid][The Leader]|
|1969|APR 10|HLK117|Incredible Hulk|[Super-Humanoid][The Leader]|
|1969|OCT 14|HLK123|Incredible Hulk|[] xo[Crystal][Fantastic Four•[FFROS•Human Torch • Invisible Girl • Mister Fantastic • The Thing][The Leader]|
|1969|NOV 18|HLK124|Incredible Hulk|[THe Rhino][Super-Humanoid][The Leader]|
|1970|APR 14|HLK129|Incredible Hulk|[The Glob][The Leader]|