The Nordic Games, which I discussed in
first held in 1901 were effectively a prototype Winter Olympics. There was a small overlap between the two, with the last Nordic Games held in 1926. The Nordic Games were planned for 1930, but the 1930 games were cancelled due to lack of snow, after which they were discontinued.
The 1924 Winter Olympics were officially the "Semaine internationale des sports d'hiver" (International Winter Sports Week) when they were held. In 1926, about three months after the 1926 Nordic Games, they were retroactively renamed the Winter Olympics, the "1st Olympic Winter Games".
The Nordic Games were not purely winter sports; they also included motor sports (car and motorcycle racing) and Nordic wrestling (glima).
The Nordic Games were not the only pre-1924 international winter sports events. They were the first multi-sport event to include a broad range of winter sports. There were earlier single-sport international events (e.g., world figure-skating championships, etc.). The 1920 Olympics also included two winter sports: figure skating and ice hockey.