Until 1920 various local championships were played in the area of the Northern German Football Association. For the 1920–21 season, the number of first level leagues was greatly reduced to just two Verbandsligas: a northern group covering Hamburg and the Prussian Province of Schleswig-Holstein, and a southern group covering Brunswick, Bremen and the Province of Hanover.[2] However, after just one season the leagues were split-up again into several smaller Bezirksligas to save costs during hyperinflation.[3] Among those, the Südkreisliga (later: Bezirksliga Südhannover/Braunschweig) covered the area of Brunswick and the southern part of the Province of Hanover.[4] From 1922 until 1928 the Südkreisliga played in two groups, with the winners of each group playing each other for the championship. The champions, and since 1922–23 also the runners-up, qualified for the Northern German football championship.
In the 1928–29 season no regular league matches were played in Northern Germany due to a conflict between the clubs and the Northern German FA. Some major clubs demanded the creation of a single, unified top-level league in Northern Germany, while smaller clubs feared to be left out. While some of the big Hamburg and Schleswig-Holstein clubs, including Hamburger SV, Holstein Kiel, and Altona 93, formed a rebel league, most clubs in the southern parts of Northern Germany sat out the season.[5][6] In the end six Northern German Oberligas were formed as a compromise for the 1929–30 season. The Oberliga Südhannover/Braunschweig covered the same area as the old Bezirksliga, but from 1929 on was again played as a single division without groups. The top four of the Oberliga Südhannover/Braunschweig qualified for the Northern German football championship.
With the rise of the Nazis to power, the Gauligas were introduced as the highest level of football in Germany. In 1933, the Oberliga Südhannover/Braunschweig was therefore merged into the new Gauliga Niedersachsen.
^Horst Bläsig/Alex Leppert, Ein Roter Löwe auf der Brust - Die Geschichte von Eintracht Braunschweig (2010) (in German), publisher: Die Werkstatt, pages: 397–399
^Fußball in der Region Braunschweig. 60 Jahre NFV-Bezirk Braunschweig (2006) (in German), publisher: NFV-Bezirk Braunschweig, page: 15
^Stefan Peters, Eintracht Braunschweig. Die Chronik (1998) (in German), publisher: Agon-Sportverlag, page: 31
^Fußball in der Region Braunschweig. 60 Jahre NFV-Bezirk Braunschweig (2006) (in German), publisher: NFV-Bezirk Braunschweig, pages: 15–16
^Stefan Peters, Eintracht Braunschweig. Die Chronik (1998) (in German), publisher: Agon-Sportverlag, page: 34
^Fußball in der Region Braunschweig. 60 Jahre NFV-Bezirk Braunschweig (2006) (in German), publisher: NFV-Bezirk Braunschweig, page: 16