"The Independent Social Democratic Party of Germany (German: Unabhängige Sozialdemokratische Partei Deutschlands, USPD) was a short-lived political party in Germany during the German Empire and the ...
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Weimar Republic. The organization was established in 1917 as the result of a split of left wing members of the Social Democratic Party of Germany (SPD). The organization attempted to chart a centrist course between electorally oriented revisionism on the one hand and Bolshevism on the other. The organization was terminated in 1931 through merger with the Socialist Workers´ Party of Germany (SAPD)." - (en.wikipedia.org 19.11.2019)
