The evolution of the Olympic Movement during the 20th century forced the IOC to adapt the Games to the world's changing social circumstances. Some of these adjustments included the creation of the Winter Games for ice and snow sports, the Paralympic Games for athletes with physical disabilities, and the Youth Olympic Games for teenage athletes. The IOC also had to accommodate the Games to the varying economical, political, and technological realities of the 20th century. As a result, the Olympics shifted away from pure amateurism, as envisioned by Coubertin, to allow participation of professional athletes. The growing importance of the mass media created the issue of corporate sponsorship and commercialization of the Games.