1922

The partition of Upper Silesia

The border was decided in 1921, and the new administration took over the following year. Partition divided towns and workplaces within a connected industrial region.

Before partition

1918

The region within the German state. Polish and German national mobilisation does not exhaust local identities.

After partition

1922

A new Polish–German border. Two administrations, an interconnected economy, minorities on both sides.

Before partition

Germany’s defeat in the First World War opened a dispute over Upper Silesia’s state affiliation. The Polish movement sought incorporation into the restored Polish state; the German camp sought to retain the region in Germany. Neither side represented a uniform community.

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The Inter-Allied Administrative and Plebiscite Commission took over the plebiscite territory in February 1920. It was chaired by French General Henri Le Rond. France, Britain and Italy participated in Allied administration, but their interests and partition proposals differed.

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The decision in 1921

The partition dispute was referred to the League of Nations. Its recommendation formed the basis of the settlement approved by the Conference of Ambassadors on 20 October 1921. The border decision in 1921 and transfer of administration in 1922 were separate stages.

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Land, population, industry

According to IPN materials, Poland received about 29% of the plebiscite territory. The Korfanty biography reports that this part was home to about 46% of the territory’s population.

Approximate values from named accounts, without added false precision.

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Poland received the smaller share of the plebiscite territory but an important share of its industry. The University of Silesia interview with Maciej Fic reports 63 of 82 coal mines, 9 of 14 steel plants and 22 of 37 blast furnaces. These count facilities and equipment; they are not percentages of output or economic value.

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The Geneva Convention

The German–Polish Convention concerning Upper Silesia was signed in Geneva on 15 May 1922. It regulated consequences of partition, including economic matters and minority protection. The new border raised questions of citizenship, language and everyday life on both sides.

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June and July 1922

On 20 June 1922 Polish troops under General Stanisław Szeptycki ceremonially entered Katowice. Transfer of the Polish part of the region proceeded in stages during June and July. The Act marking Poland’s assumption of Upper Silesia was signed in Katowice on 16 July 1922.

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Residents on both sides of the border

Household language did not determine national identification or a plebiscite vote. Some inhabitants used Polish or Silesian varieties of speech while favouring Germany. Regional, religious and family attachments could overlap with Polish or German affiliations.

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Sources

  1. Die Teilung Oberschlesiens

    Arnulf Scriba · Deutsches Historisches Museum / LeMO · 2014-09-02

  2. Upper Silesia plebiscite – an intensive course in Polish identity

    University editorial interview with Maciej Fic · University of Silesia · 2021-03-19

  3. I powstanie śląskie (1919 r.) – okoliczności wybuchu

    Mirosław Węcki · IPN / Przystanek Historia · 2020-08-16

  4. Celebrating the nation: the case of Upper Silesia after the plebiscite in 1921

    Andrzej Michalczyk · UCL Discovery (research repository)

  5. Ślązak i Polak Wojciech Korfanty (1873–1939)

    Sebastian Rosenbaum; Mirosław Węcki · IPN / Przystanek Historia · 2022-08-16

  6. Ideas for the Division of Upper Silesia After the Plebiscite

    Renata Skoczek · Institute of National Remembrance · 2021-05-07

  7. II Powstanie Śląskie

    Mirosław Węcki · Instytut Pamięci Narodowej · 2025-08-19

  8. Powstania śląskie 1919–1921: exhibition leaflet

    Instytut Pamięci Narodowej · 2021

  9. Treaty of Versailles, Article 88 and Annex; editorial notes in FRUS

    Allied and Associated Powers; US Department of State editors · Office of the Historian, US Department of State · 1919 (treaty); 1947 (FRUS volume)

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