Portal:Poland/Did you know/9

• ... that after World War II, Polish resistance organizer and Warsaw Uprising fighter Jan Mazurkiewicz (pictured) was brutally tortured by the authorities in communist Poland?
• ... that the Hetman Party of the Polish-Lithuanian Commonwealth called upon Russia to help defend their Golden Liberties?
• ... that the group of reformers known as Kołłątaj's Forge popularized the ideals of the French Revolution in Poland?
• ... that Hugo Steinhaus "discovered" Stefan Banach and helped re-establish mathematics at the University of Wrocław after World War II?