Pop quiz time!
What is historical about this cover?
It's easier than you think.
It's the first Superman comic with dialog on the cover.
Yep, this seems to be one of the earlier examples of comic covers getting all chatty. Some folks like to have words on there, some (like me) don't. But regardless, it was four years in publication before Action comics started speaking up.
Let's flash back one issue earlier to the Zatarra the Magician story:
I've mentioned before that I have mixed feelings when the real world comes into comics. You are either stuck doing an illustrated documentary of the subject matter, or you end up looking delusional. This story was published around three years before Germany would surrender, but if you got your news from comics (as small children are want to do), the war was over in 1942. Yes, I realize it isn't journalism and I'm sure it was meant to be a morale-booster, but there's something about saying a problem is solved when it really isn't that (IMHO) does a disservice.
You know what Superman doesn't have time for?
Jitter-bugging with large snakes.:
See? What did I just say?
I'll see you Monday!