The history of poker is a matter of some debate. The name of the game likely descended from the French poque, which descended from the German pochen (\'to knock\'), but it is not clear whether the games named by those terms were the real origins of poker.
Leo IV, pope from 847 to 855, was a Roman by birth, and was unanimously chosen to succeed Sergius II.
Depending on the game rules, one or more players may be required to place an initial amount of money into the pot before the cards are dealt. These are called forced bets and come in three forms: antes, blinds, and bring-ins.