"Grand Salami" is where you bet on the total number of listed occurrences, such as total goals or run, Happening during a collection of events. All relative events must be completed for bets to stand except for the outcomes of which have been decided prior to the abandonment and could not possibly be changed regardless of future events, which will be settled according to the decided outcome.
Sports betting has been around since 1000 B.C in China, where betting on animal fights was commonplace. In ancient Rome, one could wager on the Gladiatorial games. The idea of betting on sports is as old as organized sport itself. But up until the 1940s, bettors were fairly limited in what kind of bets they could make. The standard system of odds would allow bets on, for example, the 3-1 odds that the Steelers would beat the Browns.