Judo is a fun sport, an art, a recreational or social activity, and an Olympic sport.

Dr. Jigoro Kano developed Judo in 1882. He refined Ju-jutsu and integrated what he considered to be the best of other martial art forms to create what is now the modern sport of Judo. People practice Judo to compete in tournaments, to keep fit, to develop self-confidence, to socialise and most of all to have fun. Judo techniques include throws, grappling techniques, choking techniques and arm locks.

Text from judo.se