East Upper Silesia

East Upper Silesia (German: Ostoberschlesien) is the easternmost extremity of Silesia, the eastern part of the Upper Silesian region around the city of Katowice (German: Kattowitz).^[1] The term is used primarily to denote those areas that became part of the Second Polish Republic on 20 June 1922, as a consequence of the post-World War I Treaty of Versailles. Prior to World War II, the Second Polish Republic administered the area as Autonomous Silesian Voivodeship. East Upper Silesia was also known as Polish (Upper) Silesia, and the German (Upper) Silesia was known as West Upper Silesia.

Upper Silesia Plebiscite

Consequently, to the end of World War I in 1918 various proposals emerged defining the division of Upper Silesia. At the Paris Peace Conference a commission for Polish affairs was created to prepare proposals for Polish borders. In their first two proposals (of 27 March 1919 and of 7 May 1919) most of the future province was ceded, together with the region of Oppeln, to Poland. Yet that was not accepted by the Big Four, and following David Lloyd George's suggestion, the plebiscite was organized. Before it took place on 20 March 1921, two Silesian Insurrections instigated by Polish inhabitants of the area were organized. After the referendum, in which Poland had 41% of the votes, a plan of division was created that divided Upper Silesia. Following this, the Third Silesian Uprising took place. The Inter-Allied Commission on Upper Silesia, headed by the French general Henri Le Rond suggested a new plan for division of the area, which was prepared by an ambassadors commission in Paris on 20 October 1921. The division - which became effective by 20 June 1922 - still created a situation in which some rural territories that voted mostly for Poland were granted to Germany and some urban territories with a German majority were granted to Poland. The Polish Sejm decided that the easternmost Upper Silesian areas should become an autonomous area within Poland organised as the Silesian Voivodeship and with Silesian Parliament as a constituency and Silesian Voivodeship Council as the executive body. The part of Silesia awarded to Poland was by far the best-developed and richest region of the newly formed state, producing most of Poland's industrial output. Consequently, to the division in 1922, the German-Polish Accord on East Silesia (Geneva Convention) was concluded on 15 May 1922 which dealt with the constitutional and legal future of Upper Silesia as it has partly become Polish territory.

Inter-War Silesia

Division of Prussian Silesia between Weimar Germany, Poland and Czechoslovakia after World War I
Division of:	Area in 1910 (km²)	Share of territory	Population in 1910	After WW1 part of:	Notes
Lower Silesia	27,105 km²^[2]	100%	3,017,981	Divided between:
to Poland	526 km²^[3]^[4]	2%	1%	Poznań Voivodeship (Niederschlesiens Ostmark^[5])	^{[Note 1]}
to Germany	26,579 km²	98%	99%	Province of Lower Silesia
Upper Silesia	13,230 km²^[2]	100%	2,207,981	Divided between:
to Poland	3,225 km²^[6]	25%	41%^[6]	Silesian Voivodeship	^{[Note 2]}
to Czechoslovakia	325 km²^[6]	2%	2%^[6]	Hlučín Region
to Germany	9,680 km²^[6]	73%	57%^[6]	Province of Upper Silesia

Nazi Germany

East Upper Silesia was annexed by Nazi Germany along with other Polish areas following the invasion of Poland in 1939, which triggered the outbreak of World War II.^[1] Until 1941, the region was administered as Regierungsbezirk Kattowitz,^[1] the easternmost government region of the Silesia Province. From 1941 to 1945, it was part of the Upper Silesia Province. Under Nazi rule, Upper Silesia included the cities of Beuthen, Gleiwitz, Hindenburg in Oberschlesien, Kattowitz, and Königshütte. It also contained the rural districts (Landkreis) of Bendsburg, Beuthen-Tarnowitz, Bielitz, Kattowitz, Krenau, Ilkenau, Pless, Rybnik, Saybusch, Teschen, and Toszek-Gleiwitz.

In the spring of 1945, the region was occupied by the Red Army after the Silesian Offensives defeated the Wehrmacht there.

Present day

After the war, East Upper Silesia was restored to Poland. Poland also received West Upper Silesia and most of Lower Silesia as part of the Recovered Territories. Today, the region is roughly represented by the Silesian Voivodeship.

Notes

^ After World War I, Poland received a small portion of historical Lower Silesia, which had had a majority ethnic Polish population since 1918. This included parts of the counties of Syców (German: Groß Wartenberg), Namysłów, Góra and Milicz, for a total of around 526 km² and 30,000 inhabitants, including the city of Rychtal.^[6]^[3] As the area was too small to form its own voivodeship, it was incorporated into Poznań Voivodeship (former Posen).
^ Interwar Silesian Voivodeship was formed from Prussian East Upper Silesia (3,225 km²) and the Polish part of Austrian Cieszyn Silesia (1,010 km²), for a total of 4,235 km². After the annexation of Trans-Olza from Czechoslovakia in 1938, this increased to 5,122 km².^[7] The capital of Silesian Voivodeship was Katowice.

References

^ ^a ^b ^c Isabel Heinemann, "Rasse, Siedlung, deutsches Blut": das Rasse- und Siedlungshauptamt der SS und die rassenpolitische Neuordnung Europas 2nd edition, Wallstein Verlag, 2003, p.229, ISBN 3-89244-623-7
^ ^a ^b "Gemeindeverzeichnis Deutschland: Schlesien".
^ ^a ^b "Rocznik statystyki Rzeczypospolitej Polskiej 1920/21". Rocznik Statystyki Rzeczypospolitej Polskiej (in Polish and French). I. Warsaw: Główny Urząd Statystyczny: 56–62. 1921.
^ "Schlesien: Geschichte im 20. Jahrhundert". OME-Lexikon - Universität Oldenburg.
^ Sperling, Gotthard Hermann (1932). "Aus Niederschlesiens Ostmark" (PDF). Opolska Biblioteka Cyfrowa.
^ ^a ^b ^c ^d ^e ^f ^g Weinfeld, Ignacy (1925). Tablice statystyczne Polski: wydanie za rok 1924 [Poland's statistical tables: edition for year 1924]. Warsaw: Instytut Wydawniczy "Bibljoteka Polska". p. 2. Archived from the original on 2018-12-25. Retrieved 2020-01-05.
^ Mały Rocznik Statystyczny [Little Statistical Yearbook] 1939 (PDF). Warsaw: GUS. 1939. p. 14. Archived from the original (PDF) on 2018-11-27. Retrieved 2020-01-05.