Ludwik Krzywicki
![Krzywicki in 1882](https://upload.wikimedia.org/wikipedia/commons/a/a3/Ludwik_krzywicki_1882.jpg)
An early champion of sociology in Poland, he approached historical materialism from a sociological viewpoint. From 1919 to 1936, he was a professor at the University of Warsaw. Provided by Wikipedia
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Published: 2003
Superior document: Wznowienia / Poznańskie Towarzystwo Przyjaciół Nauk 16
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