Vladimir Lenin

One of the most confusing men in the most confusing times in all of history. He thought his version of Communism would work. However, the result would make the USSR and East Bloc, China, Cambodia, and North Korea. Screwed Trotsky (Trotsky wanted more of a democracy).

Marxism-Leninism
It didn't work. Because it looked like Socialist Nazism. But most of that credit can go to Stalin.

Russian Revolution
Led a revolution against the Russian Czar, but apparently became one of them and turned into a talking pig. See Animal Farm. If only Lenin hadn't died in 1922, or Trotsky chosen/forced as his successor, the USSR might have became one of the most fun and paradise-like countries in the world. Instead, we got a near-Fascist totalitarianism that I'm glad I wasn't part of.