Casino history is easier to grasp when you can see it in the objects people...

https://varimail.com/articles/why-reels-became-the-default-way-to-show-slot-outcomes/

Casino history is easier to grasp when you can see it in the objects people used. Cards carry traces of changing games, roulette wheels reveal the house rules in their pockets, and slot reels show how chance became a public spectacle