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.
Olympic Games
The United States hosted four Winter Games, more than any other nation. The other nations hosting multiple Winter Games are France with three, while Switzerland, Austria, Norway, Japan, Canada and Italy have hosted twice. Among host cities, Lake Placid, Innsbruck and St. Moritz have played host to the Winter Olympic Games more than once, each holding that honour twice. The most recent Winter Games were held in Pyeongchang in 2018, South Korea's first Winter Olympics and second Olympics overall (including the 1988 Summer Olympics in Seoul).