Gaming operators in Europe in the middle of the 19th century started offering single-zero games to lure customers, overturning a tradition of two centuries of double-zero roulette gaming.
Abadlali bezemidlalo eYurophu maphakathi nekhulu le-19th baqale ukunikela ngemidlalo eyodwa-zero ukuheha abathengi, beqa isiko lamakhulu amabili wemidlalo ye-roulette yama-zero amabili.