I believed the obvious ... jersey's as they're called in NZ, (not pull-overs)came from jersey cows. Life was much simpler back then!
A childhood belief about general

others believed things like this
- Since we receive bread at Mass, I thought he was called "Jesus Crust" Seemed pretty obvious!Anon
- Until I was about four and a bit my father had me convinced that Friesian cows were called "big cats".— Chris
- I always believed there were boy cows and girl cows and boy bulls and girl bulls— karen
- I used to believe chocolate milk came from brown cows and regular milk came from black and white cowsAnon
- When I was young I believed that the windmills found in farmers fields were used to keep the cows cool.— Linda
- I believed for a long time that brown cows gave chocolate milk!— Evil Mom