I used to think that the 'olden days' ended because everybody died including the children. Then there were new people who made up the modern times.
A childhood belief about history

others believed things like this
- I used to think the olden days came once every couple of yearsAnon
- I used to believe that the olden days were black and white when I was about 3 from seing old movies.— Sam
- i thought that we were just a big story book that ended when we died— samantha
- I used to believe that life was like a tv show and that the world ended when I died.— mortimer x
- I used to think that only grown ups were "people".Children to me were no people ,they were just children.— Minny
- I was convinced that children weren't humans, only adults were, children were a total different race!— Leda