Blackjack first emerged in the 17th century when Spanish players developed the challenging card game which was originally played in small groups. When the first casinos began to operate in the 18th century those casino venues included blackjack as part of their game listing and the blackjack gained in popularity. Blackjack immigrated to America in the 19th century where it quickly became a favored game in saloons and among Western cowboys and ranchers. Today casino is most often played at the online casino where players can play any of the multiple versions of blackjack at any time of the day or night. Blackjack allows gamers to match their luck and gaming skills against the casino. Winners can earn significant cash prizes but veteran players know that they must calculate periodic losing streaks into their blackjack strategies as they plan their gaming action. In addition to the wide range of blackjack variations players can join a blackjack tournament or a progressive blackjack game to add to the fun and excitement that the blackjack game presents. Blackjack players can look forward to a round or two of their preferred version of blackjack at any time of the day or night at the 24/7 online casino.