Portal:Poland/Did you know/42

... that Theodore de Korwin Szymanowski (pictured), one of the earliest promoters of a Unified Europe, proposed a customs union, a central bank, and a single currency as far back as 1885?
... that 14-year-old Leon Śliwiński saved the life of 12-year-old David Friedman in the Kielce Ghetto during the Holocaust in German-occupied Poland?
... that the light, crisp, smoky, and highly carbonated Grodziskie beer was once nicknamed "Polish Champagne"?
... that the German-Polish astronomer Johannes Hevelius declared that one needed the eyes of a lynx to see Lynx?