Another one for cricket fans, for a long time I beleived that the cricket ground Lords was the same place that The Virgin Mary appeared to St Bernadette.
A childhood belief about sport

others believed things like this
- I used to believe that Jiminy Cricket was a grasshopper because I had never seen a green cricket.Anon
- I forgot the expression "not cricket", so I said, "not tennis" instead.Anon
- I used to believe that cricket ice cream used to be made out of real crickets!!!— Lt. Fuzz
- I used to think virgin mary was actually 'virginia mary'Anon
- I thought "Virgin Mary" was actually "Verge 'n Mary" and that Verge was a nickname for Joseph. — Rachel
- I thought the Holy Ghost was the ghost of the Virgin Mary.— Texas granny