When me and my little sister were kids, I told her that peacocks make the sun rise and set. She believed this for years, until in she decided to stand up in class and share this fact with everyone else. We are both in our 20's, and I still make fun of her for it.
A childhood belief about birds

others believed things like this
- I used to believe yeast could make bread rise because it really was salt with bubbles inside.— queeneve
- when i was little someone told me that you died if you put make up on.
they actually believed it— SeZz - I used to believe that if you used the kids' shampoos that said 'no tears' it would make you happy.— Emmy
- I thought Jesus was made up to make kids behave.Anon
- I thought that 1983 went on for 3 years - had to ask my sister who decided how long a year lasted.— Sally
- I thought Pink's "You make me sick" was "you make me sick, you make me look like a candlestick" LOL— Rice