"Great Soviet Encyclopedia" (SU) is a publication that is a symbol of the Soviet era and one of the largest encyclopedic projects in the world. Containing a huge amount of information about the most diverse aspects of life, culture, science and technology, this encyclopedia became an integral part of the libraries of every Soviet family. Comprised of chapters devoted to history, geography, art, science, technology, and many other topics, the "Great Soviet Encyclopedia" provided readers with a broad overview of world knowledge and culture. This encyclopedia was noted for its detail and objectivity in presenting the material, becoming a reliable source of information for a wide range of readers. To date, the "Great Soviet Encyclopedia" remains a valuable document of the past, which not only reflects the shades of culture and science of the past century, but also is a testimony of the ideology and approaches during the existence of the Soviet Union.