Judo

Judo is one of the most popular sports, second only to football. There are about 28 million judoists all over the world, 8 million of them live in Japan. The International Judo Federation includes 178 national federations.

The judo technique has been the basis of many modern styles of martial arts, including aikido, Brazilian jiu-jitsu and Russian sambo. By the way, one of the creators of sambo, Vasily Oshchepkov, was a second dan in judo, which was unique for a European at that time.