What two groups of people were known to be masterful in the art of grappling?

The two groups of people known to be masterful in the art of grappling are the ancient Greeks, particularly through their development of Wrestling techniques that were integral to their Olympic Games, and the Japanese, who cultivated various forms of jiu-jitsu and judo that emphasize leverage and technique. Both cultures valued grappling as a means of physical education, military training, and competitive sport, highlighting its significance in their respective martial traditions.