Became a member of the Independent Social Democratic Party (USPD) after it split off from the Social Democratic Party over support of Germany's participation in World War I
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Became a member of the Independent Social Democratic Party (USPD) after it split off from the Social Democratic Party over support of Germany's participation in World War I
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-21 from Wikipedia. The archived copy is preserved so this citation survives link rot.