1st appearance of Marvelman, later renamed Miracleman, a young man who transformed into a superhero by saying 'Kimota' which is Atomik spelled backwards
The development of Miracleman occurred after DC/National won a lawsuit against Fawcett that prohibited the use of Captain Marvel, later renamed Shazam, due to his likeness to Superman
The UK publisher of Captain Marvel reprints, facing a devastating financial blow, successfully renamed, redesigned and re-marketed Captain Marvel into Marvelman