The FIS Nordic World Ski Championships have been held in various numbers and types of events since 1925 for men and since 1954 for women. Championship events include nordic skiing's three disciplines: cross-country skiing, ski jumping, and nordic combined (the latter being a combination sport consisting of both cross-country and ski jumping). From 1924 to 1939, the World Championships were held every year, including the Winter Olympics. After World War II, the World Championships were held every four years from 1950 to 1982. Since 1985, the World Championships have been held in odd-numbered years.