The main part of the  Sándor Varga collection is related to youth organisations in Czechoslovakia. It contains a large variety of documents, including notes, suggestions, and recaps from the organisation’s meetings. A few documents are from the time when Varga participated in some youth organisations as a student, but the main part is related to the Hungarian youth organization, which Varga established in 1968. 
The foundation document of the Hungarian youth organization is preserved in the collection. The organization played an important role in defendig the rights of the Hungarian minority.  It was established in 1968 in Bratislava as a response to the political situation following the Warsaw Pact invasion of Czechoslovakia. The main purpose was to create an independent youth organisation.