"Great Soviet Encyclopedia" is a large and detailed scientific publication that has become one of the symbols of the cultural and cognitive potential of the Soviet Union. Published in 65 volumes between 1926 and 1947, this encyclopedia contained general and unique knowledge from various fields of science, technology, culture, history and other fields. The "Great Soviet Encyclopedia" has become an invaluable source of information for millions of readers, helping to expand their knowledge of the world. The uniqueness of the publication was the combination of a voluminous description of the materials with a high level of scientific knowledge and accessibility for a wide range of readers. The Great Soviet Encyclopedia (BL) is not just a reference publication, but a real treasure trove of knowledge that has become an important component of the cultural heritage of the past, and will continue to be an important source for anyone interested in the history, culture, and science of the former Soviet Union.