I know 13 was a very unlucky number. I don’t know why though. I mean, isn’t it Taylor Swift’s lucky number?
According to Wikipedia, Friday was thought of as a unlucky day and 13 as a lucky number. So, this double danger is well, “dangerous”.
Sadly, nothing exciting or special happens on Friday the 13th except that 22 people died on a Friday the thirteenth (although considering the millions of deaths anyways, it’s not that special).
Another random bit of trivia, if a month starts on a Sunday, the 13th of that month will be a Friday.
Hope you learned a little something about this superstitious end of the week.