Gambling has existed for centuries in many ancient cultures and civilizations. Evidence shows that gambling was practiced in ancient China, Egypt, and Greece, where the gods were believed to gamble. Gambling was also used in ancient religions to determine the will of the gods and is referenced in the Bible. Throughout history, gambling was used to settle political disputes or make unbiased decisions, such as using dice to determine country borders. Common instruments for gambling included dice, cards, roulette wheels, and later, slot machines.