According to Richard Epstein, craps is descended from an earlier game known as Hazard, that dates to the Middle Ages. The formal rules for Hazard were established by Montmort early in the 1700s. The origin of the name craps is shrouded in doubt, but it may have come from the English crabs, or from the French Crapeaud (for toad)

In Craps, winning or losing depends on a variety of different possible outcomes on any roll of the two dice. The two dice can produce many different number combinations; some can be made several ways, others only one way. For example, two dice can roll the number 6 as follows: 5/1, 4/2, 3/3, 2/4 and 1/5. But the number 2 can only be rolled one way: 1/1.

Place Bets - You are betting on single numbers. You win if your selected number from 4, 5, 6, 8, 9, 10 comes up before a role of 7. When betting for a number, your wager is placed in front of the number on the craps table. You can bet that your selected number will not come up before a role of 7. In this case, you wager is placed behind the number on the table.