I'm from Spain, and here in my country we have a "Civil Guard" (which is a kind of police that takes part in militar-related stuff and mostly helps out people at the countryside), and there was also a Civil War, which took place a bit before WWII. As a kid, I used to mess up both terms (since they sound very similar in Spanish, too), and I used to think that the Civil War was just a time when the Civil Guard was so busy all the time.
A childhood belief about police

others believed things like this
- I grew up in NY and used to believe that The Dukes Of Hazard took place during the Civil War.Anon
- I thought the Civil War was the Silver War.— Vicki J.
- i used to always wonder how one national guard could always guard the entire nation.— karen ellis
- I thought tornados were monsters,and that they called out the national guard to destroy it.— Ben J.Grimm
- I thought a highwayman was just someone who helps pave the road and stuff like that— Nate
- I used to believe that every country in the world had the same time. Guess I didn't consider time zones eh?— what are time zones again