Portal:Poland/Did you know/51

... that Jeremi Wiśniowiecki (pictured) was one of the wealthiest Polish magnates, ruling over 200,000 subjects living on estates in what is today Ukraine?
... that the settlements of Mikuszowice and Komorowice were divided by a national border for centuries, but are now part of one city and one country?
... that 120 Polish miners died in the rubble when the newly built train tunnel collapsed along the Poprad River Gorge (pictured) in the Beskid Mountains?
... that Lem, Poland's first scientific artificial satellite, sees blue stars while Heweliusz, its second, sees red stars?