 The intellectual beginnings of the Marburg School can be traced to 1871, when Hermann Cohen (1842–1918) published the first edition of his Kants Theorie der Erfahrung (Kant’s Theory of Experience), which interpreted Kant in an anti-psychologistic way and found in Kant’s first Critique the expression of a novel way of doing philosophy: the transcendental method. In 1873 Cohen did his Habilitation in Marburg under Friedrich Lange, who had moved there in 1872. He was promoted as Professor Extraordinarius in 1875, and then took over Lange’s chair in 1876 after his death. When Paul Natorp (1854–1924) moved to Marburg in 1880 (writing his Habilitation—Natorp 1881—under Cohen and being promoted to Professor in 1893), the “Marburg” school as an institutional force was born.