What a university professor actually gets up to… I am, or rather was, a member of the following academic societies, working groups, etc., amongst others:

• Conference on History Education. Association of History Educators in Germany (KGD)
• Society for the Didactics of General Studies (GDSU), Chair from 2005 to 2007
• Association of Historians of Germany e. V.
• Editorial board of the journal ‘Geschichte lernen’ (1996–2025)
• Historical Commission for Lower Saxony and Bremen (member since 1996, member of the Commission’s committee since 2016)
• Lower Saxony Working Group on Contemporary History
• Scientific Advisory Board at the North-West German Museum of Industrial Culture (Deputy Chair)
• Expert Commission for the Promotion and Further Development of Memorial Site Work at the Lower Saxony Memorial Sites Foundation (from 2005–2025; Deputy Chair and, from 2016–2025, Acting Chair)
• sowi-online e. V.
• Working Group on the History of the 19th and 20th Centuries
• Working Group on State and Regional History at the Oldenburgische Landschaft (Chair since 2014, jointly with Prof. Dr Gerd Steinwascher)
• Advisory Board of the Oldenburgische Landschaft
• Advisory Board of the Oldenburg Regional Association for History, Natural History and Local History e.V.
• Research Centre for Children’s and Young Adult Literature (Director from2013 to 2015, subsequently on the Executive Board until 2026)
• Programme Accreditation Commission (or, from 2019: Standing Commission) at AQAS e.V. (from 2011 to 2021; deputy Chair from 2016 to 2021)
• Jury for the Oldenburgische Landschaft’s ‘Forschung Regional’ Research Award for students in the Oldenburg region
• Advisory board for the project ‘The City Administration of Münster during the Nazi era’
• Scientific adviser on the redesign of several memorial sites in Lower Saxony (Augustaschacht and Gestapo Cellar in Osnabrück; Liebenau; Engerhafe)