.:CV Deutsche Version
- born 1957
- 2000 Habilitation at University of Bochum
- 1990 Dissertation at Bielefeld University
- 1983 First state examination in history and French at University of Münster
- 2009-2010 Fellow, Freiburg Institute of Advanced Studies (FRIAS)
- Since 2004 Speaker of the Collaborative Research Centre (SFB) 584 The Political as Communicative Space in History, Department of History, Bielefeld University
- Since 2003 Full professor of modern political history, Bielefeld University
- 2003 Visiting professor, International University Bremen (IUB)
- 2001-2003 Replacement professorships, Universities of Bochum, Köln and Konstanz
- 2000-2001 Research fellow, University of Bochum
- 1997-1999 Habilitation scholarship from the German Research Foundation (DFG), University of Bochum
- 1992-1996 Research fellow, German Historical Institute, London (GHIL)
- 1986-1991 Research fellow, Collaborative Research Centre (SFB) 177 Comparative History of the Bourgeoisie and Middle Classes, Bielefeld University