A casino, or gaming hall, is a public place where people can find and play games of chance and skill. Casino gambling includes slot machines, table games such as blackjack and roulette, and other games. Casinos make billions of dollars each year for the companies, investors, and local governments that operate them.
While gambling probably predates recorded history — primitive protodice and carved six-sided dice have been found at archaeological sites — the idea of a facility where a variety of gambling activities can be found under one roof didn’t take hold until the 16th century, when a fervor for gaming swept Europe. Italian aristocrats hosted private parties called ridotti, where they could gamble and socialize without fear of persecution by the Inquisition.
Modern casinos resemble indoor amusement parks for adults, with the vast majority of their profits coming from gambling. While musical shows, lighted fountains and shopping centers draw in the crowds, casinos would cease to exist without the games of chance on which they thrive.
All casino games have a built-in statistical advantage for the house, and the amount of this edge varies depending on the game. To compensate for this, casinos offer players free drinks, food, hotel rooms, reduced-fare transportation and other inducements. Casinos use a wide variety of tricks to encourage players, including bright and sometimes gaudy floor and wall coverings that appeal to the senses, and noises such as clangs and bells that stimulate the ears.