A casino is a gambling establishment where customers can gamble by playing games of chance or skill. Most casino games have a predictable long-term advantage to the house (known as the house edge or vigorish), but some have an element of player skill. Players who possess sufficient skills to eliminate the house edge are known as advantage players.

Gambling has been a part of human society for millennia, with the first documented use of dice occurring in 2300 BC and playing cards appearing around 500 AD. The modern casino is an international phenomenon with a number of different business models. Some casinos specialize in specific types of games, such as baccarat, roulette, and blackjack; others feature a wide range of gambling options, including poker, slot machines, and video poker.

Casinos are found in many countries worldwide, including some which are legalized and regulated by state governments. In the United States, casino gambling began to expand in the 1970s, when the first Atlantic City casinos opened. In the 1980s, casinos also started opening on American Indian reservations, which were not subject to state anti-gambling laws.

Always play within your means, and never wager with money that has already been earmarked for expenses like rent or food. You should also make sure to tip your dealers, especially if you win, and take a break from the table every now and then. It is a good idea to write down your bankroll and stick to it. Some casinos don’t even have clocks on their casino floors to encourage players to lose track of time and play for longer.