On October 1, 1887, the Koschmin district was formed from the northern part of theKrotoschin district. The town of Koschmin was the district capital.
On December 27, 1918, the Greater Poland uprising began in the province of Posen, and by January 2, 1919, the town of Koschmin was under Polish control. On February 16, 1919, an armistice ended the Polish-German fighting. With the signing of the Treaty of Versailles on June 28, 1919, the German government officially ceded the Koschmin district to the newly founded Second Polish Republic.
Demographics
According to the Prussian census of 1910, Kreis Koschmin had a population of 33,519, of which 83% were Poles and 17% were Germans.[1]
Military command
Kreis Koschmin was part of the military command (German: Bezirkskommando) in Posen at Kosten.