Portal:Poland/Did you know/87 - Wikipedia

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... that the Wawel Dragon statue (pictured) in Kraków breathes fire?
... that the Treaty of Buda enabled Louis I of Hungary to become king of Poland because his uncle had no legitimate sons, but had to be followed by the Treaty of Kassa (Košice) because Louis himself had no sons?
... that Jerzy Żuławski's Trylogia Księżycowa ("Lunar Trilogy"), published between 1901 and 1911, was a major milestone in the history of science fiction and fantasy in Poland?
... that the inmates of Poniatowa concentration camp dug their own graves as fake air-raid trenches?