I used to believe that my next-oldest sister and I were twins because for years we celebrated on the same day every year. Never mind the fact that she's _5_YEARS_AND_2_DAYS_OLDER_ than I am!
Told ya I was a weird kid!!!
:-P
A childhood belief about birthdays

others believed things like this
- My oldest sister is 15 years my senior. I used to think that she was older than my mom.— Callie
- I thought that 1983 went on for 3 years - had to ask my sister who decided how long a year lasted.— Sally
- My mum told me that cold custard (which I hated) was in fact Banana Blancmange. I lapped it up for years.— Chalky
- I used to think my birthday was a holiday everybody celebrated ]w]— Rin
- I used to think my birthday was a national holiday and the whole world celebrated it— アノン
- Since I was born on the 4th of July, I really thought the entire country celebrated my birthday.— -Stoddard