Category: Social philosophy 1901 (MCMI) was a common year starting on Tuesday (see link for calendar) of the Gregorian calendar (or a common year starting on Wednesday of the 13-day-slower Julian calendar). ... Sigmund Freud Sigmund Freud [] (May 6, 1856–September 23, 1939) was an Austrian neurologist and the founder of the psychoanalytic school of psychology, based on his theory that human development is best understood in terms of changing objects of sexual desire; that the unconscious often represses wishes (generally of a... 1947 (MCMXLVII) was a common year starting on Wednesday (the link is to a full 1947 calendar). ... Henri Lefebvre, born June 16, 1901, died 1991 was a French Marxist sociologist, intellectual and philosopher. ... 1967 (MCMLXVII) was a common year starting on Sunday of the Gregorian calendar. ... Raoul Vaneigem (born 1934) is a Belgian writer and philosopher. ... 1974 (MCMLXXIV) was a common year starting on Tuesday (the link is to a full 1974 calendar). ... Michel de Certeau (Chambéry, 1925- Paris, 9 January 1986) was a French Jesuit and scholar whose work combined psychoanalysis, philosophy, and the social sciences. ...