German reference book on people from the church and the history of philosophy. Read descriptions about people of significance in the fields of theology, history, literature, music, painting, pedagogy and philosophy. For researchers and those interested in history and religion.

Website with nearly 80,000 historical documents from the early 17th to the middle of the 19th century. Mainly contains letters written by people from all walks of life from throughout Europe, America and Asia. Interesting for researchers, historians, teachers, students and librarians.