Trofim Lysenko was the favorite biologist of Joseph Stalin. Except he believed in Lamarckism and his pseudoscience led to Soviet and Chinese famines. He was eventually disgraced at the end of his life and lost all control and immunity from criticism.
Nikolai Vavilov was a scientist in the early days of the Soviet Union. He believed in evolution by natural selection along with Mendelian inheritance. Stalin believed in the pseudoscience of Lamarckism and eventually imprisoned him where he died. Nikita Kruschev later pardoned him after death and proclaimed him a hero of Soviet science.
Chinese Communist dictator Mao Zedong only traveled outside of China twice during his rule. Both were trips to the Soviet Union.
The Soviet Union got its name from sovet, the Russian word for “council.”
The Siege of Leningrad was a blockade/battle by Nazi Germany that lasted almost 900 days and took the lives of over 2 million Russians.