there's an alternate history series I like, that's set in a world where aliens invade mid way through WW2. 75 years ago was sci-fi popular enough outside the anglosphere, that most people on Earth would have already been aware of concept of extraterrestrial life?

by grapp

deathguard6

Can I ask what Sci Fi book that is it sounds like an interesting premise.

jxj24

The Golden Age of science fiction got its start just before WW II. And before that, pulp SF was quite popular. Magazines like Argosy, Amazing Stories, and Weird Tales sold quite well, and often featured stories with beings Not Of This Earth.