I may have invented fake news, though I didn't call it that.
During 1999/2000 I was the breakfast announcer on a community radio station. It was a typical breakfast program with music, occasional quizzes, and novelties. So I invented a segment called "Not Serious News" as part of the entertainment. It was quite popular.
Unlike the orange-topped inhabitant of 1600 Pennsylvania Avenue I didn't expect anybody to take it seriously.
Now that's is comedy/satire/parody/entertainment... what you didn't, not the one on 1600 Pennsylvania Avenue. That one is scary news as so many is still blindly believing, or defending this. Ugh.