It's amusing how people demand that their fiction be nonfiction. Here's an example I saw the other day, looking up that song which is everywhere, even at the end of random Japanese TV series, because it's so beloved: https://en.wikipedia.org/wiki/September_(Earth,_Wind_%26_Fir...
> Although several theories about the significance of the date have been suggested, the songwriter Maurice White claimed he simply chose the 21st due to how it sounded when sung.[10] Allee Willis adding : "We went through all the dates: 'Do you remember the first, the second, the third, the fourth ... ' and the one that just felt the best was the 21st," Willis explains. "I constantly have people coming up to me and they get so excited to know what the significance was. And there is no significance beyond it just sang better than any of the other dates. So ... sorry!".[11]
Imagine that: writing a fictional song lyric because it... sounded good, rather than because something happened. (Apparently people can't imagine that, and imagine it had to have not been imagined.)