The state parliament consisted of a landtag with a fluctuating number of members but not more than 48, elected for a term of three years by universal suffrage. The state administration, headed by a Minister-President, was responsible to the landtag and could be removed by a vote of no confidence.[1] For most of the Weimar period, due to the political stalemate in the landtag with neither the parties of the left nor the right able to form a stable parliamentary coalition, the state governments usually were headed by non-partisan technocrats.[2]
From 1925 to 1927, following Bavaria's lead, Oldenburg was one of many German states that issued a ban on Adolf Hitler's participation in public meetings.[3] However, in the May 1932 landtag election, the Nazi Party became the largest party with 48% of the vote and captured a majority of the landtag seats, for the first time in any German state. When the Nazi Party Gauleiter of Gau Weser-Ems, Carl Röver, became Minister-President on 16 June 1932, Oldenburg became one of only five states to have installed a Nazi-led government before the Nazis came to power nationally.[4]
The state originally consisted of the main district of Oldenburg Land, as well as the two exclaves of Eutin near the Baltic coast and Birkenfeld in southwestern Germany. As a result of the Greater Hamburg Act it lost both exclave districts to Prussia and gained the City of Wilhelmshaven in return, effective 1 April 1937. By the beginning of the war in 1939, as a result of these territorial changes, Oldenburg had an area of 5,375 km2 (2,075 sq mi) and 580,000 inhabitants.
After the war, Oldenburg was part of the British occupation zone. It lost its status as a separate German state when it was merged into the newly founded state of Lower Saxony as the administrative region (Verwaltungsbezirk) of Oldenburg, and became a part of West Germany upon its establishment in May 1949. The two exclaves became part of the states of Schleswig-Holstein and Rhineland-Palatinate, respectively.
^Pridham, Geoffrey (1973). Hitler's Rise to Power: The Nazi Movement in Bavaria, 1923-1933. New York: Harper & Row. p. 42. ISBN978-0-061-36116-6.
^Orlow, Dietrich (1969). The History of the Nazi Party: 1919–1933. University of Pittsburgh Press. p. 277. ISBN0-8229-3183-4.
^Miller, Michael D.; Schulz, Andreas (2017). Gauleiter: The Regional Leaders of the Nazi Party and Their Deputies, 1925–1945. Vol. 2 (Georg Joel - Dr. Bernhard Rust). R. James Bender Publishing. pp. 11, 403–405. ISBN978-1-932-97032-6.