When I was about four or five years old, my older brother told me (in earnestness) that the Mona Lisa was the only painting in the world that was colored inside the lines, and that's why it was so famous. I believed him for quite a long time.
A childhood belief about family

others believed things like this
- My older brother once told me that Aussie shampoo was made from kangaroo pee. I avoided using it for years!— Annie
- My older brother told me that everytime you sneezed your lungs would bleed. I believed this until I was 21!— Gem
- My older brother made me believe that wristwatches were powered by tiny Japanese men inside them.— Outsider
- My older brother used to tell me if you ate raw potatoes your teeth would grow long and curly!— Lauren
- When my dad was young,he used to believe that the lines on a globe were on the world itself.— LINE MACHINES!
- My brother that is 6 years younger than me used to believe that in seven years he would be older than me.Anon