I used to think that a "New York Minute" was another form of time measurement, like an inch compared to a centemeter. I figured people living in New York had a different clock.
A childhood belief about general

others believed things like this
- I used to think that New York was pronounced "Yew Nork"Anon
- That there was an underground tunnel linking New York to San Francisco.— Christophe Chang
- When I was young I thought that York Peppermint Patties were illegal drugs.— Shirley B.
- I used to believe that the "real" Santa Claus was at Macy's in New York City. All the rest were fakes. — Marcia
- I thought the big apple was literally a giant apple in New York Anon
- When I was little, I used to believe that people REALLY DID need a pinch to grow an inch.— Marjorie McNaughton