Men's Junior Volleyball World Championship was created in 1977.
World Junior Chess Championship was created in 1951.
Girls Youth Volleyball World Championship was created in 1989.
Boys Youth Volleyball World Championship was created in 1989.
Individual Speedway Junior World Championship was created in 1977.
Team Speedway Junior World Championship was created in 2005.
the hockey world junior championship was founded in 1974.
1977
Ufa, Russia
World Pizza Championship was created in 1991.
World Polo Championship was created in 1987.
FIVB World Championship was created in 1949.
World Championship Wrestling was created in 1982.