TIMELINE

Second Lieutenant pilot Janina Lewandowska wasn't really the only woman, who died in Katyn, but the only female soldier who was shot there.

Father Jan Cieplak was auxiliary bishop of the Mogilev archdiocese, at that time the largest Roman Catholic archdiocese in the world, covering the whole of Russia up to Sakhalin.

The first Siberian fortresses were built by Polish prisoners of war who had been taken captive by Moscow authorities precisely during the war initiated by Stefan Batory.