I thought Battersea was called that because it was built right next to the sea and got battered by the waves. Later when I learned about the Battersea Shield I thought it was like a giant wall they built at the seaside to shield the city from the waves!
A childhood belief about places

others believed things like this
- I thought that the song "Built this City" by starship went as follows. "Milk and Cereal, Rock and Roll"Anon
- I used to think that Hadrian also built the Great Wall of China.— Spacey
- I used to believe that in the tooth fairy took all your teeth and built a tooth city for her to live in!Anon
- I used to think the song "Who Built the ark? Noah. Noah." was "Who built the Ark? No one, no one!"— Embarrassed Kent Girl
- I used to believe the whitewash on waves was actually whale pee.— Tessica
- I used to believe that somebody turned the ocean waves off at night.— David