Evolution of Revolutions

I wanted to know why a number of revolutions had occurred in the Western Hemisphere during a half century timeframe. I was also curious about the Russian Revolution and wondered if it had any similarity with the revolutions in the Americas. I tried to present the Russian Revolution as the sequential biographies of four men: Marx, Lenin, Trotsky and Stalin. Then I got to the start of World War II and kept on reading and writing. How did the Soviet Union arrange to “own” Eastern Europe nations at the end of the war? How long did it take Stalin to subdue the populations of the East Europe countries? How does it compare with how long it took Lenin to subdue the Russian people after World War I? Finally, I moved to my intoxicating curiosity about the Cuban Revolution. How long did it take Fidel Castro to subdue the Cuban people? How does that time compare with similar efforts by Lenin and Stalin? I read and wrote until I ran out of things to be curious about. Hope you enjoy reading this product of my curiosity.