Soldiers in the Roman Legions used to shave down pig knuckles into the shapes of cubes, and toss them onto their inverted shields as a form of entertainment while in camp. Hence we get the term "to roll the bones". We do know that the game we know today as "craps" came to the United States from Europe.

the first roll of the dice in a betting round is called the "come out" roll. Pass bets win when the come out roll is 7 or 11, while pass bets lose when the come out roll is 2, 3, or 12. Don't bets lose when the come out roll is 7 or 11, and don't bets win when the come out roll is 2 or 3. Don't bets tie when the come out roll is 12 (2 in some casinos; the "bar" roll on the layout indicates which roll is treated as a tie)

The casino game of Craps is played with a set of two perfectly balanced dice with each die having six white dots numbered 1 through 6. The game is played by tossing the dice from one of the short ends of the table to the other (make sure that both die hit the opposite side wall of the table) Payoffs are made based on the number combination displayed when the dice come to rest.