Sometimes a show ends, and you think that was it. You saw the twist and the finale and the full story. But then someone brings up a theory, and everything changes.

The 1960s is the golden era for retro style cartoons. Even today, many of the colorful animated shows are still funny and adventurous.

Over the years, many beloved characters have changed a lot — from their early days on TV or in games to how we see them now.

According to the Disney company, that was the suggestion that spawned Mickey Mouse. It was by Lillian Disney, who married ...