Other forms: gulags
In the 20th century, the gulag was a system of Russian camps where political prisoners were sent to do forced labor. Officially, the last gulag closed in the 1950s.
During the regimes of Vladimir Lenin and Joseph Stalin, the Soviet Union used gulags across the country to imprison political enemies. The entire system was known as the Gulag, an acronym from Russian that roughly translates to "Chief Administration of Corrective Labor Camps." Each individual prison camp was also referred to as a gulag. Some historians estimate that 14 million people were forced to labor in gulags, some for crimes as petty as joking about the Soviet government.