Percentage of Polish and German native speakers in the Province of Posen based on falsified 1910 Prussian census which included stationed German military as local German population. Other measures included removal of Poles speaking German language from Polish ethnic group in the census.[1][2][3][4]
The Germanisation of the Province of Posen was a policy of the Kulturkampf measures enacted by German Chancellor Otto von Bismarck, whose goal was to Germanize Polish-speaking areas in the Prussian Province of Posen by eradicating and discrimination of Polish language and culture, as well as to reduce the influence of the "ultramontanist" Roman Catholic clergy in those regions.