"Memorial for Karl Liebknecht" by Käthe Kollwitz, 1921. Karl Liebknecht and Rosa Luxemburg were among the founders of the Berlin Spartakusbund (Spartacus League) that evolved into the Communist Party of Germany. On January 15, 1919, Liebknecht and Luxemburg were shot to death during the Spartacus Revolt on the pretext that they were attempting escape.
Paul von Hindenburg was the second president of Germany in the age of the Weimar Republic, elected due to his status as a war hero. In the 1930s, Hindenburg struggled to uphold the republic in the midst of severe economic depression. Against Hindenburg's better judgment, Adolf Hitler became chancellor in 1932, using unrest against the government to garner support for the Nazi Party. Hindenburg died two years later.