The topic of integration is inextricably linked with coal mining, because miners from many different countries have always worked together. Over decades, the solidarity required to survive down in the mine also contributed to successful integration of the migrants above ground as well. The Ruhr area thus developed into a cultural melting pot with its five million inhabitants. And the miners’ values are no less relevant today – quite the contrary, in fact: solidarity, reliability, cohesiveness, tolerance and mutual trust are more important than ever as essential pillars of getting along and thriving in society.