In 1972, the WHA was formed with 12 teams, split into two divisions of six teams each, with the other division being the East Division.

The league was formed in 1991, with three teams.

The GLLL originally formed with 9 teams in 2004.

The modern league was formed with six teams in 1997.

The British Women's Leagues were formed with five teams in 1984.

Originally formed with four teams, it expanded and as of 2011, now features some thirty teams.

The league was formed in 1971 with eight teams competing in its first season.

The first Quiz League on Merseyside was formed in Bootle in 1959 with just ten teams, making it one of the oldest in the country.

Soon after, the ABL was formed, with eight teams from around Australia.

The ACT Gridiron League was formed in 1993 with five teams competing for the Capital Bowl trophy.