Henryk Jan Jabłoński (Polish pronunciation: [ˈxɛnrɨk jaˈbwɔɲskʲi]; 27 December 1909 – 27 January 2003) was a Polish historian and politician. After 1948, he became a politician of the ruling Polish United Workers' Party, as well as a historian and professor at Warsaw University. He served as head of state of the People's Republic of Poland between 1972 and 1985.
Władysław Tatarkiewicz (Polish: [vwaˈdɨswaf tatarˈkʲevitʂ]; 3 April 1886 – 4 April 1980) was a Polish philosopher, historian of philosophy, historian of art, esthetician, and ethicist.
Ludwik Joachim Franciszek Krzywicki (21 August 1859 – 10 June 1941) was a Polish Marxist anthropologist, economist, and sociologist.
An early champion of sociology in Poland, he approached historical materialism from a sociological viewpoint. From 1919 to 1936, he was a professor at the University of Warsaw.
Jan Czochralski ( YAN chokh-RAHL-skee, Polish pronunciation: [ˈjan t͡ʂɔˈxralskʲi]; 23 October 1885 – 22 April 1953) was a Polish chemist who invented the Czochralski method, which is used for growing single crystals and in the production of semiconductor wafers. It is still used in over 90 percent of all electronics in the world that use semiconductors. He is the most cited Polish scholar.There is evidence that Czochralski sheltered two Jewish women in his home until the Warsaw Uprising to save them from the Germans and some evidence that he was instrumental in financially helping a previously owned Jewish business in the ghetto.