With the end of the Cold War and the triumph of globalization, many believed that nationalism now was a thing of the past: instead the opposite is true. Today, we can see nationalism spreading across the world, as populistic and anti-democratic movement grow stronger. Belonging somewhere seems to become even more important in a time of economic and social uncertainty. In a globalized world, identity, citizenship, residence. The essay in this anthology are based on the Engelsberg Seminar in 2017, where different kind of identity - tied to different kind of communities - were considered. How does a nation emerge? How is unity achieved in an empire with a diverse population?