5th January 1919, Spartacus League, led by Karl Liebknecht and Rosa Luxembourg staged uprising in Berlin.
Aimed to overthrow Ebert gov. and set up revolutionary communist regime
Newspaper offices and public buildings occupied, Spartacists didn't have majority support of working class in Berlin.
Ebert used Freikorps to put down revolt
13th January revolt crushed after street fighting
Prisoners liebknecht and Luxembourg executed
Didn't end left wing rebellion- more in March 1919, April 1919+20, March 1921+23