A variation of the traditional Rummy game, Rummy Jack first appeared in the early 1900s. The Mexican game "Concentration" and the American game "Gin Rummy" are the origins of tradifantafeat logintional Rummy, which is thought to have influenced it. The game quickly became a mainstay in homes and gaming establishments after gaining popularity in social circles. Its enduring presence in the card game industry can be attributed to its appealing combination of strategy, skill, and chance. Card game rules & variations changed along with the game itself.