Your high school history textbook. The biological theory of the Soviet Union was Lysenkoism.
You mean the Revised Edition?
Meanwhile I would ask if the following statement is true or not:
"At a very early age, while still a pupil in the ecclesiastical school, Comrade Stalin developed a critical mind and revolutionary sentiments. He began to read Darwin and became an atheist."
If true, I would have to say a certain theory of evolution had a deleterious effect on the human race. I might even go so far as to suggest this theory of evolution became a guiding priciple in Stalin's life. But hey, it's just an innocuous theory, right?