The history of blackjack is marked by several notable events and milestones that have shaped the game into what it is today. Originating in 17th-century France as "Vingt-et-Un," the game gained popularity and was introduced to America in the early 19th century, where it evolved and adopted its current name. The early 20th century saw the establishment of formal casino gambling in Nevada, which contributed to blackjack's rise in prominence. The introduction of the basic strategy in the 1950s revolutionized play, helping players make statistically informed decisions. The emergence of card counting techniques during the same period further changed the landscape of the game, allowing skilled players to gain a significant edge. Over the years, the game's popularity has continued to grow, leading to various rule variations and tournament formats that keep it a staple in casinos worldwide. These milestones reflect blackjack's evolution from a simple card game to a complex and strategic favorite among gamblers.