According to https://en.wikipedia.org/wiki/Curling#Olympic_curling:
Curling has been an official sport in the Winter Olympic Games since the 1998 Winter Olympics. It currently includes men's, women's and mixed doubles tournaments (the mixed tournament was held for the first time in 2018).[27]
In February 2002, the International Olympic Committee retroactively decided that the curling competition from the 1924 Winter Olympics (originally called Semaine des Sports d'Hiver, or International Winter Sports Week) would be considered official Olympic events and no longer be considered demonstration events. Thus, the first Olympic medals in curling, which at the time was played outdoors, were awarded for the 1924 Winter Games, with the gold medal won by Great Britain and Ireland, two silver medals by Sweden, and the bronze by France. A demonstration tournament was also held during the 1932 Winter Olympic Games between four teams from Canada and four teams from the United States, with Canada winning 12 games to 4.