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 24 March 1942, the first stage of the evacuation of the soldiers serving in the so-called Anders Army from the Soviet Union to Persia began. About 78,000 exiles, who joined the Polish army and 37 thousand civilians, including about 18,000 Polish children were evacuated in total.

On 4 July 1928, the founding congress of the Sybiraks' Association was held at the Warsaw University of Technology.

The Union of Soviet Socialist Republics was the first communist state in history. The decision to create it was taken on 30 December 1922.

The Polish-Bolshevik war broke out on 14 February 1919. The site of the first confrontation was the town of Mosty near Szczuczyn in the Grodno region, where Polish Army units halted the Red Army’s march.

On 31 October 1906 Marian Malinowski set off, as he himself put it, “on a journey into the unknown at government expense.”