the seasons from 2005–06 to 2010–11, the tournament rules were changed to allow a maximum of eight Superliga reserve teams to compete in the third-tier — the reserve teams were eventually moved to the 2011–12 Danish Reserve League upon its creation. The division has changed its name on several occasions. It has previously been known as III Serie (1936–37 until 1939/40; or 3. Serie), 3. Division (1945/46 until 1990; or 3. division), before settling with the current name beginning with the 1991-season. Due to a sponsorship arrangement, it was known as Kanal Sport Divisionen during the 2015–16 season. History Formation of national third-tier The decision to establish a nation-wide third-tier league as part of the Danmarksturneringen i fodbold below the second-tier II Serie was made at the annual convention of the Danish FA (DBU), in 1936. The league started its operation in August 1936, when III Serie was created with two geographically divided constituencies, each including four teams playing two matches at home and away. Out of the eight teams, only one gained promotion to the second-tier the following season, following the promotion play-offs at the end of the season, which at the same time determined the overall league champions. With the occupation of Denmark during World War II, the Danmarksturneringen's three league structure was disbanded in 1940. Reintroduction of the third-tier 1945 In 1945, a Danish third level was reintroduced as the bufferzone between the elite teams and the amateur clubs with 10 teams. One team gained promotion to 2nd Division, and one relegated to the club's respective regional football league. In 1951, The 3rd Division was expanded to 12 teams and to teams was relegated to a newly created Kvalifikationsturneringen – the new buffer between the Danmarksturneringen and the regional football leagues. The structure was changed again in 1966. Two geographical groups with 12 teams each were created. Only one team could be promoted and two teams be relegated. The Danish 2nd Division West would for the most part consist of teams from the Jutland FA and Funen FA, while Danish 2nd Division East would consist of teams from the Zealand FA, Copenhagen FA, Lolland-Falster FA and Bornholm FA. In 1975, the number of teams in the league got expanded and the 3rd Division rolled into one row with 16 teams, where two teams could be promoted to the 2nd Division and teams relegated to the Denmark Series.