Predicting sports results by making a wager on the outcome of a sporting event
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Snooker history
Illustration of a game of three ball pocket billiards in early 19th century Tübingen, Germany
The game of billiards dates back to the 15th century but snooker is a more recent invention. In the late 19th century billiards games were popular among British army officers stationed in India, and players used to experiment with variations on the game. Due to the fact that billiards was a two-player game, multi-player variations such as life pool (where different coloured balls were use as cue and/or object balls, depending on the situation or number of players) and pyramid pool (fifteen red balls racked in a triangle where each player received a point per ball potted) became popular.
http://www.sportbooking.eu/2009/03/snooker-history/