Martial combat sport
- 'Judo' stands for 'gentle way'.
- It is the most widely practiced martial art and the second most-practiced sport worldwide after soccer.
- According to American College of Sports Medicine, it is the safest contact sport for children under 13.
- The sport was created in Japan in 1882 by Jigoro Kano.
- The two principles of Judo are "Maximum-efficient use of energy" and "Mutual welfare and benefit of practitioners".
- Practitioners of the sport are called judoka.
- Sambo and Brazilian Jiu-Jitsu are varients of Judo.
- Judo has three basic techniques called waza - nage-waza (throwing techniques), katame-waza (grappling techniques) and atemi-waza (striking techniques). The first two are the most known.
- Kodokan Monthly Tournament is one of the earliest judo tournament.
- An informal demonstration of the sport was made by Kano at the 1932 Olympic Games.
- It was made an Olympic sport in 1964 Tokyo Games for men but was dropped for the 1968 games following protests.
- Dutchman Anton Geesink won the first Olympic gold medal.
- Women Judo was part of Olympics in 1988 as a demonstration event, and an official medal event in 1992.
- Rating system in Judo is called kyu developed by Jigoro Kano. The rating system was based on a board game called Go.
- The color of the belt determines judoka's position within the kyu-dan ranking system - from white to black.