Casino history is hiding in familiar objects: playing cards, the logic of...
https://www.list-bookmarks.win/casino-history-is-easier-to-grasp-when-you-can-see-it-in-the-objects-people
Casino history is hiding in familiar objects: playing cards, the logic of single-zero and double-zero roulette wheels, and the turning reels of a slot machine. In 1895, a San Francisco mechanic helped make that last device iconic.