History, they say, is written by the victors, even the temporary ones. The dominance of counter-revolution and the overthrow of socialism in the Soviet Union and the Eastern European countries in the early 1990s was the trigger for the escalation of anti-communism at all levels.
Through bourgeois historiography and the mainstream media, a series of fallacious theories have been developed, aimed at slandering the 20th century socialism and demonizing Marxist-Leninist ideology.