While the popularity of Blackjack dates from World War I, its roots go back to the 1760s in France, where it is called Vingt-et-Un (French for 21). In fact, for the expert player who mathematically plays a perfect game and is able to count cards, the odds are sometimes in that player's favor to win.īut even for the casual participant who plays a reasonably good game, the casino odds are less, making Blackjack one of the most attractive casino games for the player. Equally well known as Twenty-One. The rules are simple, the play is thrilling, and there is opportunity for high strategy.