Stalin was the dictator of the Union of Soviet Socialists Republics.
Stalin was born into poverty and became involved in revolutionary politics as a young boy. He also committed crimes.
Stalin created an act called the Great Purge. Millions of people were killed during this time.
If people did not follow Stalin or did something he didn't like, you could be sent to a Gulag. A Gulag is a system of labor camps.
Something interesting about Stalin was that he was the cause of at least 20 million deaths. He imprisoned, tortured, exiled, starved people, and forced people into labor.