Saarland
In 1920, the Treaty of Versailles made Saarland from parts of the Prussian Rhine Province () and the Rhine Palatinate (). The area was put under the control of the League of Nations for 15 years. After a plebiscite (vote) in 1935, Germany got the land back. After World War II the Saarland came under French administration.  The Saar Protectorate was allowed its own government for most things in 1947 but not independence. Germany got the Saarland back in 1957 and it became a Bundesland.