Short answers, pulled from the story.
Greek wrestling was added to the Olympic Games in 708 B.C., making it the first competition in the program that was not a footrace. It was also included as one of the five events in the pentathlon.
A point was scored in one of three ways: by forcing the opponent's back, hip, or shoulder to touch the ground; by making the opponent submit through a hold; or by pushing the opponent outside the wrestling area. Three points were required to win a match.
Milo of Croton was one of the most celebrated wrestlers of antiquity. At one set of games he slipped while walking to the wrestling area after no opponent came forward to face him. When the crowd argued he should not be crowned, he countered that he had fallen only once, two short of the three falls required to lose a match, and was awarded the victory.
Greek wrestling banned hitting, kicking, eye gouging, biting, and grasping the genitals. All other holds intended to force submission through pain or fear were permitted. Infractions were punished immediately by the referee using a whip, and three points were required to win the match.
Leontiskos of Messene won two championships through superior finger-bending technique rather than conventional wrestling skill. He would bend opponents' fingers to the edge of legality to force submission. The ancient lexicon Suda called him Akrokhersites because of his practice of breaking opponents' fingers.
The standard wrestling area measured one square plethron, equivalent to 100 Greek feet on each side, or approximately 28.5 by 28.5 metres. The surface was sand or earth, and contestants began each bout at the center of the square.