Educated at
Freie Universität Berlin and at the
Technische Universität Berlin, where he studied philosophy,
history of religion, and
sinology. Jaeschke earned his doctorate in 1976 with the dissertation
Die Suche nach den eschatologischen Wurzeln der Geschichtsphilosophie. Eine historische Kritik der Säkularisierungsthese at the Free University of Berlin. His
habilitation took place a decade later at the
Ruhr-Universität Bochum with the study
Die Vernunft in der Religion. Studien zur Grundlegung der Religionsphilosophie Hegels (Stuttgart 1986). From 1974 to 1989, Jaeschke worked as a research associate at the
Hegel Archives of the Ruhr-Universität, and from 1989 to 1998, he worked as a research associate at the
Berlin-Brandenburg Academy of Sciences. He was also an extraordinary professor at the Institute of Philosophy at the Free University of Berlin. From 1998 until his retirement in 2010, he worked as a professor of philosophy with a special focus on
German Idealism at the Ruhr-Universität Bochum, as well as the director of the Hegel Archive there, where the critical edition of Hegel's works is being developed. In 2014, he was elected as a corresponding member of the
North Rhine-Westphalian Academy of Sciences, Humanities and the Arts. He directed the critical
Gesammelte Werke edition of the work of
Georg Wilhelm Friedrich Hegel. He also co-directed critical editions of the works of
Friedrich Heinrich Jacobi and
Friedrich Daniel Ernst Schleiermacher. == Works ==