12 June 2021
The character made his first appearance in Tales of Suspense #39 (cover dated March 1963). After issue #99 (March 1968), the Tales of Suspense series was renamed Captain America. An Iron Man story appeared in the one-shot issue Iron Man and Sub-Mariner #1 (April 1968), before the "Golden Avenger" made his solo debut with Iron Man #1 (May 1968).