Interesting Facts About Casino Games
Evergreen, verifiable facts about the origins of roulette, slot machines, playing cards and casino game mechanics.
Roulette's French roots
The modern roulette wheel evolved in 18th-century France from earlier wheel-based games. The single-zero European wheel gives a house edge of roughly 2.7%, while the American double-zero version pushes it to about 5.26%. Online live roulette uses the same wheel physics streamed from a studio.
The Liberty Bell slot
Charles Fey built the Liberty Bell machine in San Francisco around 1895. It had three reels and five symbols — horseshoes, diamonds, spades, hearts, and a cracked Liberty Bell. Three bells in a row paid the top prize. That mechanical format is the ancestor of every video slot in a UK lobby today.
Playing cards crossed continents
Playing cards likely entered Europe through Mamluk Egypt in the 14th century, arriving with Islamic suits that were later adapted into hearts, diamonds, clubs and spades. The 52-card deck standardised over centuries and remains the basis for blackjack, baccarat and poker variants online.
Blackjack was not always called blackjack
The game Americans call blackjack was known as "21" in European casinos long before the name change. The "blackjack" label came from a bonus payout for a hand containing the ace of spades and a black jack — a promotion that stuck even after the bonus disappeared.
RNGs replaced mechanical reels
UK-licensed online slots use certified random number generators rather than physical reels. Each spin is an independent outcome determined at the moment you press the button. Testing labs like eCOGRA and GLI audit these systems to confirm published return-to-player percentages match reality over millions of spins.
