Hard coal was the most important energy source in the Ruhr region for over a century. From 1857 to 1973, Zeche Hannover(the Hannover colliery) in Bochum produced huge quantities of hard coal. The exploitation of coal underground led to the settling of the earth’s surface throughout the region. The damage is still having an effect today. Mining and industry attracted many people. The history and current state of Zeche Hannover is closely interwoven with migration and cultural diversity. Aware of the cultural and economic importance, the museum takes these issues into consideration.