I thought it's just because the british empire is like a plague that's spreading everywhere..

Honestly, it makes perfect sense to me, but that’s probably because I have astigmatism.

We’ve seen the head as the seat of intellect for millennia, and glowing things (the sun, moon, and stars) have always been endowed with mystical and miraculous properties.

Glowing things look like pointy rings if you squint or have impaired vision. Combine those simple concepts – pointy glowing wreath on the head – and you get a crown.

(And earlier renditions were just gold wreaths, often made of leaves, like the Roman laurels.)

Does everyone in the comments know this is true or just assume its true? OP please share sources for the rest of us.

They never had contact ? Like when ? People travelling most of the globe way before British figured out basic stuff.

Ancient sumeria, Egypt, Assyrians and Indians had concepts like crowns. Also if a civilization did something cool, others usually copied it under 200 years.

Not a historian, so grain of salt.

I think you are letting yourself get fooled by the English word "coronation". Because while it is true that coronation ceremonies are pretty universal, they mostly didn't involve any actual coronation or crowns, which are mostly specific to the Western world for known historical reasons.

Big deal -> cool hat.

Seems straightforward to me

Big head = big deal person

Hats are the billboards of cultural status. A shiny metal hat bedazzled with stolen rocks of other cultures? Well that just advertises, "I've got a nice big army to make up for my small perspective".

Good point. That is curious

Well ordaning yourself probably goes back to sexual selection. We've probably had tribe "leaders" since we could walk. Anything around your head, where you look at and communicate toward, is the natural spot to ordane yourself. I think necklaces are also common between cultures.

Did the Mongols have crowns too?