Since his creation, Superman became widely recognized by the public thanks to his emblem (that big S on his chest inside a yellow shield). But in the 1940s, this symbol was more remembered for its black background, something not used today. In fact, it wasn't even used in the comics of that era, but even so, this dark emblem became very popular and even made it to the movies. I wrote about it in SOC TUM POW. So, 'up, up, and away' to read the new article.