Craps in London had been the joint epithet for the numbers two and three, which in hazard are the only permanent instant losing numbers for wagers on Pass. For a century after its invention, craps was abused by casinos using unfair dice. To remedy the problem, in approximately 1907, a Philadelphia dice maker named John H. Winn introduced a layout which featured bets on both Pass and Don't Pass. Most modern casinos use his innovation. Craps exploded in popularity during World War II, which brought most young American men of every social class into the military. The street version of craps
Craps does not stop gamblers from believing in them. One of the best known systems is the Martingale System. In this strategy, the gambler doubles his bet after every loss. After a win, the bet is reset to the original bet. The theory is that the first win would recover all previous losses plus win a profit equal to the original stake. The main article on martingale describes the flaws in this system. Other systems depend on the gambler's fallacy, which in craps terms is the belief that past dice rolls influence the probabilities of future dice rolls. For example, the