At only 26 years old, he published the 600-page work Nationalitätenfrage und Sozialdemokratie ('The Nationality Question and Social Democracy')
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At only 26 years old, he published the 600-page work Nationalitätenfrage und Sozialdemokratie ('The Nationality Question and Social Democracy')
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-23 from Wikipedia. The archived copy is preserved so this citation survives link rot.