Since the end of the Cold War, cosmopolitanism has undeniably experienced a renaissance. It re-emerged in the humanities and social sciences as well as among political theorists, until it was criticised for being overstrained with content, and alternative concepts were suggested to cover parts of its meaning. One of the most influential points of reference in the discussions of cosmopolitanism is the Enlightenment philosopher Immanuel Kant (1724-1804). In the context of the recent refugee arrivals in Europe, the Kantian definition of cosmopolitan right as hospitality made cosmopolitanism less attractive as it demonstrated a gap between theory and practice that had changed over time. The restricted Kantian definition of hospitality as the right to visit, not to be treated hostile, and for the host, the right to reject the visitor as long as there was no risk for life, was formulated in a time of colonialism, perhaps to save parts of the world from colonisers. As the situation was quite different in the recent refugee situation, Kant's cosmopolitan right was turned upside down. However, Kant's cosmopolitanism is not just a cosmopolitan right.