The History of Sportsbooks
Many states have only recently made sportsbooks legal. Some states still require gamblers to place bets in person, but in others, you can now access sportsbooks online.
This was not always the case. In the U.S., the Professional and Amateur Sports Protection Act of 1992 allowed only Nevada, Oregon, Montana, and Delaware to legally wager on sports other than horse racing, greyhound racing, and jai alai.