Second Lieutenant pilot Janina Lewandowska wasn't really the only woman, who died in Katyn, but the only female soldier who was shot there.
On May 18, 1944, soldiers of the 2 Polish Corps hung the Polish flag on the ruins of the Monte Cassino monastery.
On 4 July 1928, the founding congress of the Sybiraks' Association was held at the Warsaw University of Technology.
On 18 March 1921, the treaty ending the Polish-Bolshevik war (the so-called Treaty of Riga) was signed in Riga.
He died on 7 July (25 June according to the Julian calendar) 1892 on the Siberian river Kolyma.