International Olympic Committee
The IOC organises the modern Olympic Games and Youth Olympic Games, held in summer and winter, every four years. The first Summer Olympics organised by the IOC was held in Athens, Greece, in 1896; the first Winter Olympics was in Chamonix, France, in 1924. Until 1992, both Summer and Winter Olympics were held in the same year. After that year, however, the IOC shifted the Winter Olympics to the even years between Summer Games, to help space the planning of the two events from one another, and improve the financial balance of the IOC, which receives greater income on Olympic years. The first Summer Youth Olympics were in Singapore in 2010 and the first Winter Youth Olympics were held in Innsbruck in 2012.
Paralympic Games
The first Winter Paralympic Games were held in 1976 in Örnsköldsvik, Sweden. This was the first Paralympics in which multiple categories of athletes with disabilities could compete. The Winter Games were celebrated every four years on the same year as their summer counterpart, just as the Olympics were. This tradition was upheld until the 1992 Games in Albertville, France; after that, beginning with the 1994 Games, the Winter Paralympics and the Winter Olympics have been held in those even-numbered years separate from the Summer Games.