MPs of Great Poland (Wielkopolska) descent assumed a clear stand on Silesian autonomy in the Silesian Parliament. They accepted the functioning of the constitutional bill of 15 July 1920, which contained an organic statute of the Silesian Voivodship. In the Silesian Parliament they represented a range of political groups, such as: Christian Democracy (Chrzescijanska Demokracja), National Workers' Party (Narodowa Partia Robotnicza), Polish Socialistic Party (Polska Partia Socjalistyczna) and National Christian Work Union (Narodowo Chrzescijanskie Zjednoczenie Pracy), which was a party of Pilsudski's adherents who formed a movement known as 'sanation'. All of them were aware of the fact that Silesian autonomy contributed to the development of the region within the Polish state. The organic statute did not in any way hinder Silesia's integration with the Second Republic of Poland.
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