International Workshop “Mathematics and Mathematization of Physical Theory: Historical
and Conceptual Aspects.” (organizer) University of Mainz, 22–23 June 2018.
International Symposium: “L.E.J. Brouwer (1881-1966): Perspectives on His Life and Work.”
(co-organizer) University of Mainz, 24 May 2018.
XIV. Rheinisch-Westfälisches Seminar zur Geschichte und Philosophie der Mathematik (Rhe-
WeSe) (co-organizer) University of Mainz, 9 February 2018.
International Conference “Thinking about Space and Time: 100 Years of Applying and Interpreting
General Relativity.” (co-organizer with Claus Beisbart and Chris Wüthrich, funded
by the Swiss National Foundation, Thomalla-Foundation, Albert-Einstein Center Bern, UBS)
University of Bern, 12–14 September 2017.
International Symposium “A Richer Picture of Mathematics. A Symposium in Honor of David
E. Rowe.” (organizer) University of Mainz, 18–20 May 2016.
XI. Rheinisch-Westfälisches Seminar zur Geschichte und Philosophie der Mathematik (Rhe-
WeSe) (co-organizer) University of Mainz, 12 February 2016.
International Workshop “The Philosophy of Historical Case Studies.” (co-organizer with Raphael
Scholl, funded by Mittelbauvereinigung and Institute for Philosophy of the University of
Bern), University of Bern, 21–22 November 2013.
International Symposium “Decoherence and No-Signalling. Current Interpretational Problems
of Quantum Theory.” (co-organizer with Michael Esfeld and Adrian Wüthrich, funded by Mittelbauvereinigung of the University of Bern and Conférence Universitaire de Suisse Occidentale),
University of Bern, 23–24 June 2011
Workshop “Historical Roots of Quantum Gravity Research”, Einstein Papers Project, Caltech(co-organizer), August 10–12, 2010.
International Workshop “Poincaré, Hilbert, and the Foundations of Mathematical Physics.”University of Mainz, Germany (co-organizer), 28–29 May 2010.
Organizer of session on “Theoretical Physics up close: editing the papers of Einstein, Hilbert,Lorentz, Poincaré.” Annual meeting of the History of Science Society, Vancouver, B.C., 3 November 2006
International Conference on the “History of General Relativity,” March 9–15, 2005, La Orotava,
Teneriffe, sponsored by various institutions (member of the international advisory committee)
International Conference on the “History and Foundations of General Relativity,” June 26–29,
2002, Amsterdam, sponsored by various institutions (member of the international advisory
board)
International Workshop on “Logic and the Foundations of the Exact Sciences — Hilbert’s Heritage,”
June 28–30, 2001, University of Berne, sponsored by the Max-und-Else-Baer-Brawand-
Fonds (organizer)
5th International Conference on the “History and Foundations of General Relativity,” July 8–
11, 1999, Notre Dame, sponsored by various institutions (member of the international advisory
board)
Workshop on “Wissenschaften im Umbruch. Logik, Mathematik, Physik in Göttingen, 1890-
1930,”June 12–13, 1998, funded by the German Science Foundation and the Institute for the
History of Science at Göttingen University (organizer)
4th International Conference on the “History of General Relativity,” July 31–August 3, 1995,
Berlin, sponsored by the Max Planck Society and the German Science Foundation (member
of the international advisory board and of the local organizing committee)
“2te Novembertagung zur Geschichte der Modernen Mathematik,” November 7–11, 19991, Berlin,
hosted by the Max Planck Institute for Human Development and Education (organizer)