Vem daterade Rosa Luxemburg?

Rosa Luxemburg (polska: Róża Luksemburg), född 5 mars 1871 i Zamość i Kejsardömet Ryssland (nuvarande Polen), död (mördad) 15 januari 1919 i Berlin i Weimarrepubliken, var en polsk-tysk socialist (socialdemokrat och senare kommunist) av judisk härkomst.

Leon "Leo" Jogiches (Russian: Лев "Лео" Йогихес; 17 July 1867 – 10 March 1919), also commonly known by the party name Jan Tyszka, was a Polish Marxist revolutionary and politician, active in Poland, Lithuania, and Germany.

Jogiches was a founder of the political party known as the Social Democracy of the Kingdom of Poland and Lithuania (main forerunner of the Communist Party of Poland) in 1893 and a key figure in the underground Spartacus League in Germany, the predecessor of the Communist Party of Germany, during the years of World War I.

For many years the personal companion and a close political ally of internationally famous revolutionary Rosa Luxemburg, Jogiches was assassinated in Berlin by right-wing paramilitary forces in March 1919 while investigating Luxemburg's and Liebknecht's murder some weeks before.