"King Henry I of England died from a surfeit of lampreys." I like this, not because it is a fact*. But because of the fact that generations of kids in England have learned this phrase at school, yet if you ask people what the word "surfeit" means then most people haven't got a clue. And if you ask them what "lampreys" are they don't know. It's a really old phrase (Henry died in 1135), and we no longer use these words (or very rarely use them). * It's also disputed by historians (like most things that happened a 900 years ago). He died, but maybe he was poisoned. And so it's perhaps not a fact but an early example of fake news.

I'm not sure whether it's ridiculous, wrong or just incredible, that just nine of the world's richest people have more combined wealth than the poorest 4 billion people. (figure from 2018, but probably not much different today).

'I before e, except after c, Or when sounded like "a" as in "neighbor" and "weight," Except "seize," "inveigle," "either," "Weird," "leisure," "neither."' (Also: ancient being caffeine concierge conscience counterfeit deficient deice deicide deictic deific deification deify deign deil deism deity efficient eiderdown Einstein feisty financier foreign forfeit Geiger heifer height heirloom heist obeisant peignoir prescient protein reimburse science seigneur seismic sleight species weiner weir)

slugs are homeless snails

How do someone know some certain events will happen in the future.