The Austrian School is a school of economic thought that is based on the concept of methodological individualism, that social phenomena result from the motivations and actions of individuals. It originated in the late-19th and early-20th century Vienna with the work of Carl Menger, Eugen von Böhm-Bawerk, Friedrich von Wieser, and others. It was methodologically opposed to the Prussian Historical School (a dispute known as Methodenstreit).