My birthday is July 4, my parents and grandparents told me that the "fireworks" were set off in honor of my birthday every year. I believed it for the longest time.
A childhood belief about birthdays

others believed things like this
- My parents have the same birthday -- month, day, and year. I though all mom's and dad's had the same birthday.— Cait
- Since I was born on the 4th of July, I really thought the entire country celebrated my birthday.— -Stoddard
- My birthday was on a different day every year, assigned by my parentsAnon
- I used to think that your birthday changed every year, and that your parents just decided what day it was.— Daniel
- iwas told that if u cry on your birthday you would not get any bigger 4 a whole year— steve
- Up until I was almost 11, I thought that a birthday suit was a special outfit you wore only on your birthdayAnon