10 Zlotys 100th Anniversary of the 3rd Silesian Uprising

The Third Silesian Uprising of May 1921 was the largest and most decisive of the three Polish armed insurrections in Upper Silesia following World War I. It was launched just weeks after the League of Nations plebiscite awarded the majority of the disputed territory to Germany — a result Poles broadly rejected as manipulated by local administrative pressure and the exclusion of Polish migrant workers from the vote. Wojciech Korfanty led the uprising, and the military action ultimately forced the League to reconsider the partition line.

The final boundary drawn in October 1921 gave Poland the more industrially valuable eastern strip, including much of the Katowice coalfield.