- ... that Aerolot (poster fragment pictured), the predecessor of Poland's flag carrier, LOT Polish Airlines, has common roots with Lufthansa, the flag carrier of Germany?
- ... that Otto Stadie, a nurse who served at Adolf Hitler's headquarters with the Nazi euthanasia program, kept the register of stolen gold and diamonds at Treblinka?
- ... that Aleksander Lesser was one of the first artists to paint scenes from modern Polish Jewish history?
- ... that Polish general Józef Haller de Hallenburg faked his death in the 1918 Battle of Kaniów?