"Great Soviet Encyclopedia" (UE) is one of the largest publications created during the Soviet era, which was conceived as a comprehensive source of knowledge in various fields of science, technology, culture and history. This encyclopedia presents thousands of articles on various aspects of life, culture and science that were relevant for Soviet society. This is an important source of information, which for many years was the basis for learning and self-education for millions of people in the former USSR. "Big Soviet Encyclopedia" (UE) is not only an encyclopedic publication, but also a unique reflection of the ideology and worldview of the Soviet era.