Leon Chwistek
20 August 1944
['13 February 2013', '19 February 1946', '7 January 1915', '8 June 2007', '10 September 1923', '19 December 1999', '25 March 1978', '25 September 1969', '14 May 1925', '2 September 1980', '5 May 1967', '4 November 2008', '27 May 1934', '7 April 1966', '12 November 1947', '3 February 1999', '5 June 1980', '5 August 1946', '27 March 1983', '12 September 1986', '9 April 1961', '22 April 2003', '21 April 1973', '10 October 1979', '8 October 1963', '16 August 1960', '2 February 1953', '23 May 2015', '18 January 1946', '5 July 1911', '4 April 1994', '18 February 1975', '6 October 1981', '30 October 2006', '31 May 1910', '20 March 1856', '7 September 2009', '6 May 1943', '15 January 1968', '3 January 2012', '3 February 1942', '26 November 2001', '5 May 1981', '22 October 1949', '29 December 1909', '21 September 2005', '23 July 1966', '19 March 1965', '9 June 1978', '18 March 1966', '31 December 1990', '12 October 1995', '29 December 1984', '3 March 1996', '21 February 2004', '16 October 1968', '9 September 1969', '18 May 1900', '25 December 1975', '6 June 1944', '18 October 1945', '19 January 1954', '7 April 1992', '3 September 1987', '20 June 2002', '7 September 1939', '16 December 1981', '18 October 2008', '10 February 2013', '18 August 2009', '3 January 1946', '31 August 1942', '15 May 1945', '29 April 1952', '13 August 1940', '24 February 1959', '11 May 1993', '17 December 1962', '3 January 2007', '18 May 1959', '7 July 2010', '4 March 1945', '6 May 1899', '25 February 1915', '29 March 1984', '12 October 2014', '14 January 1989', '9 March 1954', '17 January 2004', '9 December 1996', '6 April 1963', '3 January 1970', '20 December 2005', '14 September 1944', '12 November 1986', '20 June 1946', '18 June 1981', '11 April 1983', '15 May 1991']
Leon Chwistek
Leon Chwistek (Kraków, Austria-Hungary, 13 June 1884 – 20 August 1944, Barvikha near Moscow, Russia) was a Polish avant-garde painter, theoretician of modern art, literary critic, logician, philosopher and mathematician.