Lots of betting agencies and betting strategies had been developed until the 90s. This is how odds appeared, the bets on number of goals, the handicaps, the Asian handicaps, the half time bets and so on. This is also when the concept of a difficult event appears. If you bet on a team which didn't have the upper hand, your win was bigger as compared to the one you registered if you bet on the favourite team.
The first online betting agency appeared in the 90s and it was found in the Caribbean Islands. This agency provided services on the Internet,...