User blog comment:Brian Linder/Send Your Questions for Stan Lee/@comment-25001019-20140530011045/@comment-5041674-20140530012022

He did not come up with Captain America... He just wrote for the comic. The original creators where Joe Simon and Jack Kirby. However, he has stated before that, after seeing a bug crawl up a wall, he had the idea of a character that could do that. He soon came up with Spider-Man, and approached Jack Kirby and Steve Ditko on the design. He preferred Ditko's over Kirby's, and thus, Steve Ditko became the artist for the spider-man comic in Amazing Fantasy #15 and some of the Amazing Spider-Man comics afterwards.