- ... that during the 1950s, Communist propaganda for the war against the potato beetle alleged that the insect (pictured) was introduced into East Germany, Poland and Czechoslovakia by the United States as a form of entomological warfare?
- ... that Polish-Jewish publisher Samuel Orgelbrand financed the printing of his Encyklopedia Powszechna ("Universal Encyclopedia"), the first modern Polish encyclopedia, with proceeds from sales of the Babylonian Talmud?
- ... that Polish nationalism is more restrictive in terms of ethnicity and religion than the earlier Polish-Lithuanian identity?