Boxing is a combat sport in which two people, usually wearing protective gloves, throw punches at each other for a predetermined set of time in a boxing ring. Boxing is supervised by a referee over a series of one- to three-minute intervals called rounds. The result is decided when an opponent is deemed incapable to continue by a referee, is disqualified for breaking a rule, resigns by throwing in a towel, or is pronounced the winner or loser based on the judges’ scorecards at the end of the contest. In the event that both fighters gain equal scores from the judges, the fight is considered a draw (professional boxing). While humans have fought in hand-to-hand combat since before the dawn of history, boxing as an organized sport may have its origin in the ancient Greeks as an Olympic game in BC 688.