Karl Raimund Popper (28 July 1902 - 17 September 1994)
Born and bred in Vienna, he also studied there. After completing his teaching diploma in 1927, he gained a Dr.phil. title a year later. During this time he gave private lessons and worked in Vienna as a teacher and social worker. He was involved in youth organisations such as the Jung-Wandervögel, and later as a supervisor of delinquent youths and as a day-care educator. In 1937 he immigrated to New Zealand where he taught philosophy at the Canterbury University in Christchurch. In 1946 he moved to England and worked at the London School of Economics. There he worked as a professor of logic and scientific methods. During this time, he spent many years teaching as a visiting professor in Vienna and especially at various universities in the USA. Following the philosophy of the Vienna Circle and the liberal school of thought of Austria’s economy, Popper composed works on the philosophy of science as well as highly regarded publications on the history of philosophy and political philosophy which were influential for this school of thought. A copy of his dissertation manuscript “The Question of Method in Cognitive Psychology” which he submitted in the summer semester of 1928 in Vienna, is available in the Archive.