 After a year at Marburg, Arendt spent a semester at Freiburg, attending the lectures of Husserl.In 1926 she moved to the University of Heidelberg, where in 1929, she completed her dissertation under the other leading figure of the then new and revolutionary "Existenzphilosophie", Karl Jaspers (1883–1969), a friend of Heidegger's.Her thesis was entitled "