Description
Related Subjects

The graph displays the other subjects mentioned on the same pages as the subject "Berlin, Brandenburg, Kingdom of Prussia, Germany". If the same subject occurs on a page with "Berlin, Brandenburg, Kingdom of Prussia, Germany" more than once, it appears closer to "Berlin, Brandenburg, Kingdom of Prussia, Germany" on the graph, and is colored in a darker shade. The closer a subject is to the center, the more "related" the subjects are.