My birthdate is 6 June, which is the anniversary of the D-Day landings, and my first name is Dawn. I used to believe, right up to my teens, that D-Day stood for "Dawn's Day".
A childhood belief about general

others believed things like this
- I still belive that when a I sleep, my toys would have a party and play with each other until dawn.— Meah
- My cousic used to think he was older than me because his birthday was in June and mine was in December.— //**...Ethan...**\\
- i used to believe (because my dad told me so) that AM stood for "awful music" and FM stood for "fine music"— skydvgrl
- I used to believe that I was older than my brother because I was born in June and he was born in OctoberAnon
- When I was a kid, I thought the musical Mamma Mia did songs from the A*Teens (the teenage version of Abba)Anon
- i used to believe A.D. stood for "after dinosaurs".— Jennifer