The Free City of Danzig was a semi-autonomous city-state created after the First World War under the Treaty of Versailles, comprising the port city now known as Gdansk and surrounding territory. It was placed under the protection of the League of Nations, with Poland given control of its foreign affairs and customs and the right to use the port, even though the population was overwhelmingly German. Tensions between the German majority and Poland grew, and after the Nazi Party won control of the city government in the 1930s, the city increasingly acted in line with Germany. German demands for the return of Danzig were a pretext for the invasion of Poland, and the war began with the German bombardment of the Polish garrison at Westerplatte.
Before and after
- from 20 September 1920 to 1 January 1932Founding of International Mathematical Union
- from 23 September 1920 to 2 December 1920Turkish–Armenian War
- from 24 September 1920 to 29 November 1920Red Army invasion of Armenia
- 2 November 1920KDKA begins the first commercial radio broadcasts
- from 15 November 1920 to 1 September 1939Free City of Danzig
- from 29 November 1920 to 25 December 1991Armenian Soviet Socialist Republic
- 9 December 1920Birth of Carlo Azeglio Ciampi
- 1921Founding of Poland men's national football team
- 1921Discovery of Egtved Girl
More in Civilizations & archaeology
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- from 10 July 1940 to 29 August 1944Vichy France
- from 21 July 1940 to 20 August 1991Estonian Soviet Socialist Republic
The era
This moment belongs to the Modern era (1914 CE to 1945 CE), world wars and a changing world. You can also browse everything in the 20th century.