The Gulag Archipelago: An Experiment in Literary Investigation is a three-volume non-fiction series written between 1958 and 1968 by Russian writer Aleksandr Solzhenitsyn, a Soviet dissident. It was first published in 1973 by the Parisian publisher YMCA-Press, and it was translated into English and French the following year. It explores a vision of life in what is often known as the Gulag, the Soviet labour camp system. Solzhenitsyn constructed his highly detailed narrative from various sources including reports, interviews, statements, diaries, legal documents, and his own experience as a Gulag prisoner.

Memorial is an international human rights organisation, founded in Russia during the fall of the Soviet Union to study and examine the human rights violations and other crimes committed under Joseph Stalin's reign. Subsequently, it expanded the scope of its research to cover the entire Soviet period.