The collection was made after an interview with Vytautas Umbrasas about the Student Scientific Society at Vilnius University. During the first interview (on 17 January 2018), Umbrasas mentioned briefly that he may have some letters and documents about the society's activities, and correspondence with Mart Laar. The researcher of the project Grybkauskas stressed the importance of this kind of documentation. During the second interview (25 January 2018), Umbrasas gave letters, drafts and other documents to the researcher to be deposited in the archives of the Lithuanian Institute of History, thus establishing the collection.