When I was about 5 I used to say "the day after yesterday" when I meant two days ago.
A childhood belief about general

others believed things like this
- Up until I was ten I believed that Yesterday was a day of the week— Kirsty
- i used to think that housten was a real person and not a place, im 16 and i found this out yesterday......!lol— jess p
- i used to belive that kidney beans were bean shaped things that grew in kidneys... untill yesterday — Jokey
- Yesterday I realised that invisible ink doesn`t make me invisible.— Jonathan Eleven years old
- i used to believe that sex meant love and that having sex meant the two people would live happily ever after.— amy
- i used to believe that if you got barked at by a dog you would die in 45 days— woza