
author
1871–1919
A fierce voice of German socialism, he became famous for opposing militarism and speaking out against World War I when few politicians would. His short, dramatic life ended in the turmoil of the German Revolution, making him one of the era’s most remembered radical figures.

by Karl Paul August Friedrich Liebknecht
Born in Leipzig on August 13, 1871, he was the son of Wilhelm Liebknecht, one of the founders of Germany’s Social Democratic movement. Trained as a lawyer, he defended political clients and built a reputation as a sharp critic of militarism, especially through his writing and speeches aimed at the power of the military in public life.
He entered the Reichstag in 1912 as a member of the Social Democratic Party, but became widely known for breaking with the party leadership over World War I. He was one of the most prominent antiwar voices in Germany, later working closely with Rosa Luxemburg and helping lead the Spartacus League, the revolutionary socialist group that grew out of the wartime split on the left.
In the upheaval that followed Germany’s defeat in 1918, he was among the founders of the Communist Party of Germany. On January 15, 1919, during the violence surrounding the Spartacist uprising in Berlin, he was arrested and killed. His death, alongside Luxemburg’s, turned him into a lasting symbol of revolutionary politics in modern German history.