https://en.wikipedia.org/wiki/Baader%E2%80%93Meinhof_effect?
> The Baader–Meinhof effect, also known as frequency illusion, is the illusion in which a word, a name, or other thing that has recently come to one's attention suddenly seems to appear with improbable frequency shortly afterwards (not to be confused with the recency illusion or selection bias[1]). It was named in 1994 after the German Baader–Meinhof Group, when a contributor to the Bulletin Board column in the St. Paul Pioneer Press reported starting to hear the group's name repeatedly after learning about them for the first time.