The two-day workshop of the CRC 1482 Human Differentiation is already the second part on the topic “Differentiating Humans. Historical Perspectives on Human Differentiation”, organized by Gregor Feindt, Anne Friedrichs, researchers at the IEG, and IEG Director Johannes Paulmann at the Leibniz Institute of European History, Mainz. People differ - but these differences are not given, they are made, sometimes negotiated and questioned. In our present day, numerous practices of differentiation are as obvious as they are contested, but despite all the controversy, there is a lack of awareness that such distinctions have a history and need to understood as the result of historical processes. The workshop enquires into the historical dimension of differentiation and brings together researchers working on relevant differentiation and their production. With this programme, the workshop contributes to the work of the CRC 1482 Human Differentiation, a cooperation of the Johannes Gutenberg University Mainz and the Leibniz Institute of European History funded by the German Research Foundation. For further information on the workshop, please contact Gregor Feindt (feindt@ieg-mainz.de).