Gambling is opposed by many religions (notably Islam and most interpretations of Christianity), and is either banned or heavily controlled in many jurisdictions (notably most of the United States). Consequently, gambling has long been linked to organised crime. Conversely, the close involvement in governments (through regulation and gambling taxation) has led to a close connection between many governments and gambling organisations, where legal gambling provides much government revenue.
Gambling games are believed to predate recorded history, with gambling games recorded in virtually all of the ancient civilizations.
Types of casino gambling:
In addition many bookmakers offer odds on a number of non-sports related outcomes, e.g. the direction of various financial indices, whether snow will fall on Christmas Day, the winner of television competitions such as Big Brother, etc.
Non-casino gambling games:
See also casino games.