Tchoukball is an indoor team sport developed in the 1970s by Swiss biologist Dr Hermann Brandt. Dr Brandt was concerned about the number of injuries in sport at the time and as part of an educational study he wanted to create a sport that reduced injuries, was not aggressive between players and enabled people of all shapes, sizes, genders, cultures, and backgrounds to play together.The sport is usually played on an indoor court measuring 27 metres by 16 metres. At each end there is a 'frame' (a device similar to a trampoline off which the ball bounces) which measures one square metre and a semicircular D-shaped forbidden zone measuring three metres in radius. Each team can score on both ends of the court, and comprises 12 players, of whom 7 may be on the court at any one time. In order to score a point, the ball must be thrown by an attacking player, hit the frame and bounce outside the 'D' without being caught by the defending team. Physical contact is prohibited, and defenders may not attempt to intercept the attacking team's passes. Players may take three steps with the ball, hold the ball for a maximum of three seconds, and teams may not pass the ball more than three times before shooting at the frame.Tchoukball has become an international sport, played in Brazil, Canada, China, the Czech Republic, Great Britain, India, Italy, Spain, Japan, Macau, Philippines, Poland, Singapore, Switzerland, Taiwan, and the United States. It is governed by the Féderation Internationale de Tchoukball (FITB, founded in 1971). Taiwan hosted the 2004 World Championships and won both the women's and junior championships, with the Swiss men winning the men's championship. The 2006 European Championships were held in Switzerland, with Great Britain taking both the Men's and Under-18's titles, while the hosts won the Women's event.