I used to believe that sex was a recently thought up invention, probably invented only a couple of years before I found out about it. I remember thinking "Phew, that's lucky, my generation will now be able to carry on the human race."
A childhood belief about reproduction

others believed things like this
- I thought that some animals had just been "invented" recently (like within the last 50 years or so)— Makron
- I used to believe that we (the human race) was a movie and God was showing it to everyone.— Sean
- I recently found out that Euthanasia is not Asian youth.Anon
- I used to believe that a vitamin was a small animal
only recently I have found out that it is not true... :)— Sylwia - Before the invention of the camera, everything looked like a cartoon with the quality/effect of oil painting.— MD Caruso
- as a kid, i was told by my older cousins that i wasnt human until i turned 7 years old.— twk