For a while I refused to go to the drive-in movie theater because I had the idea that wars took place in theaters. (Must have heard something about the various "theaters" in WWII!)
A childhood belief about wars

others believed things like this
- I used to believe that it was the Star Wars "Tri-ology" instead of the Stars Wars "trilogy".— keith Key
- I heard the song about Heaven being a place where nothing ever happened and thought, "What a boring place."Anon
- I once refused to believe in Thursday. I'd heard there were seven days in a week, but could only name six.Anon
- Since he had fought in WWII, I naturally assumed my grandfather had killed Hitler himself.Anon
- I used to think that world wars's were called war wars. So then World War II became War War II.— Maria
- I used to think all wars lasted only 4 years, like college or something. Anon