I want to know the answer to the following question:
What brought communism?
All the background I'm provided with is that "The Russian Revolution of 1917 (and similar, albeit less successful, revolutions in many other European countries) brought communism - and in particular the political theory of Leninism, but also on a smaller level Luxemburgism (gradually) - on the world stage.". Is that enough to answer the question?
Answer: yes