The Leibniz Institute of European History (IEG) in Mainz, founded in 1950, is an independent research institution dedicated to researching the historical foundations of Europe. The IEG’s research covers European history from the 15th to the 20th century. The central topic of its research programme is the “negotiation of difference” in Europe. Three research areas investigate the religious, cultural, political and social dimensions of how otherness and inequality were established, overcome and enabled.
The Institute consists of a religious history department and a general history department with a shared research programme. It employs more than three dozen academics conducting historical research. The Institute promotes young researchers through its comprehensive Research Fellowship programme and, in cooperation with Johannes Gutenberg University in Mainz, its DFG-funded Research Training Group.
For more than a decade, the Institute has been dedicated to the idea of open access publishing. Its online research and publication projects include the project "EGO | European History Online" (http://www.ieg-ego.eu) covering 500 years of European history across national, disciplinary and methodological boundaries, IEG-Maps (http://www.ieg-maps.uni-mainz.de) and recensio.net – a review platform for European history (http://www.recensio.net).
Since 2012, the IEG has been a member of the Leibniz Association.