"Of Mind and Matter" analyzes identity formation in the multicultural border region of Sleswig. It highlights the changeability of national sentiments and explores what has motivated local inhabitants to define themselves as Germans or Danes. The analysis focuses especially on the respective national minorities, among whom the transitional and flexible aspects of Sleswig identity surface most clearly. The study investigates national sentiments in a border region from a theoretical and comparative perspective. It relies on diverse forms of historical evidence, including quantitative sources...