Otto Karl Wilhelm Neurath (; Austrian German: [ˈɔtoː ˈnɔʏraːt]; 10 December 1882 – 22 December 1945) was an Austrian-born philosopher of science, sociologist, and political economist. Considered "one of the neglected geniuses of the twentieth century", Neurath, among other things, invented the ISOTYPE method of pictorial statistics and an innovator in museum practice. Before he fled his native country in 1934, Neurath was one of the leading figures of the Vienna Circle.
Early life Neurath was born in Vienna, the son of Wilhelm Neurath (1840–1901), a well-known Jewish political economist at the time. Otto's mother was a Protestant, and he would also become one. Helene Migerka was his cousin. He studied mathematics and physics at the University of Vienna (he formally enrolled for classes only for two semesters in 1902–3). In 1906, he gained his Ph.D. in the department of Political Science and Statistics at the University of Berlin with a thesis entitled Zur Anschauung der Antike über Handel, Gewerbe und Landwirtschaft (On the Conceptions in Antiquity of Trade, Commerce and Agriculture). He married Anna Schapire in 1907, who died in 1911 while bearing their son, Paul, and then married a close friend, the mathematician and philosopher Olga Hahn. Perhaps because of his second wife's blindness and then because of the outbreak of war, Paul was sent to a children's home outside Vienna, where Neurath's mother lived, and returned to live with both of his parents when he was nine years old.
Career in Vienna Neurath taught political economy at the New Vienna Commercial Academy in Vienna until war broke out. Subsequently, he directed the Department of War Economy in the War Ministry. In 1917, he completed his habilitation thesis Die Kriegswirtschaftslehre und ihre Bedeutung für die Zukunft (War Economics and Their Importance for the Future) at Heidelberg University. In 1918, he became director of the Deutsches Kriegswirtschaftsmuseum (German Museum of War Economy, later the "Deutsches Wirtschaftsmuseum") in Leipzig. There he worked with Wolfgang Schumann, known from the Dürerbund for which Neurath had written many articles. During the political crisis which led to the armistice, Schumann urged him to work out a plan for socialization in Saxony. Along with Schumann and Hermann Kranold developed the Programm Kranold-Neurath-Schumann. Neurath then joined the German Social Democratic Party in 1918–19 and ran an office for central economic planning in Munich. When the Bavarian Soviet Republic was defeated, Neurath was imprisoned but returned to Austria after intervention from the Austrian government. While in prison, he wrote Anti-Spengler, a critical attack on Oswald Spengler's Decline of the West. In Red Vienna, he joined the Social Democrats and became secretary of the Austrian Association for Settlements and Small Gardens (Verband für Siedlungs-und Kleingartenwesen), a collection of self-help groups that set out to provide housing and garden plots to its members. In 1923, he founded a new museum for housing and city planning called Siedlungsmuseum. In 1925 he renamed it Gesellschafts- und Wirtschaftsmuseum in Wien (Museum of Society and Economy in Vienna) and founded an association for it, in which the Vienna city administration, the trade unions, the Chamber of Workers and the Bank of Workers became members. Then-mayor Karl Seitz acted as the first proponent of the association. Julius Tandler, city councillor for welfare and health, served on the first board of the museum together with other prominent social democratic politicians. The museum was provided with exhibition rooms in buildings of the city administration, the most prominent being the People's Hall at the Vienna City Hall. Neurath was a contributor to the Social Democrat magazine Der Kampf. To make the museum understandable for visitors from all around the polyglot Austro-Hungarian Empire, Neurath worked on graphic design and visual education, believing that "Words divide, pictures unite," a coinage of his own that he displayed on the wall of his office there. In the late 1920s, graphic designer and communications theorist Rudolf Modley served as an assistant to Neurath, contributing to a new means of communication: a visual "language." With the illustrator Gerd Arntz and with Marie Reidemeister (who he would marry in 1941), Neurath developed novel ways of representing quantitative information via easily interpretable icons. The forerunner of contemporary infographics, he initially called this the Vienna Method of Pictorial Statistics. As his ambitions for the project expanded beyond social and economic data related to Vienna, he renamed the project "Isotype", an acronymic nickname for the project's full title: International System of Typographic Picture Education. At international conventions of city planners, Neurath presented and promoted his communication tools. During the 1930s, he also began promoting Isotype as an International Picture Language, connecting it both with the adult education movement and with the Internationalist passion for new and artificial languages like Esperanto, although he stressed in talks and correspondence that Isotype was not intended to be a stand-alone language and was limited in what it could communicate. In the 1920s, Neurath also became an ardent logical positivist, and was the main author of the Vienna Circle manifesto. He was the driving force behind the Unity of Science movement and the International Encyclopedia of Unified Science. Neurath was a proponent of Esperanto, and attended the 1924 World Esperanto Congress in Vienna, where he met Rudolf Carnap for the first time. In 1927 he became Secretary of the Ernst Mach Society.
Exile
Netherlands During the Austrian Civil War in 1934, Neurath had been working in Moscow. Anticipating problems, he had asked to get a coded message in case it would be dangerous for him to return to Austria. As Marie Reidemeister reported later, after receiving the telegram "Carnap is waiting for you," Neurath chose to travel to The Hague, the Netherlands, instead of Vienna, to be able to continue his international work. He was joined by Arntz after affairs in Vienna had been sorted out as best they could. His wife also fled to the Netherlands, where she died in 1937.
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