For this is the house where Rosa Luxemburg was born in 1871 – or so the Communist authorities once claimed. A Polish-Jewish Marxist theorist, economist and revolutionary, Luxemburg spent just three years of her life in Zamosc. She grew up mostly in Warsaw, studied in Zurich, and settled in Berlin. After the defeat of the so-called Spartacist Uprising in 1919, Luxemburg – together with another lead...