"Great Soviet Encyclopedia" (BRE) is a publication that is a unique guide to knowledge about the most diverse aspects of life, culture, science and technology. Created during the Soviet era, this encyclopedia is noted for the depth and validity of its content, high-quality information that provided useful knowledge to its readers. In its more than 100-year history, the "Great Soviet Encyclopedia" (RS) illustrated the essence of Soviet doctrine and ideology, having a rich and representative character. It became not only a source of knowledge about the cultural and scientific achievements of mankind, but also a reflection of the ideals and values of the society where it existed. "Big Soviet Encyclopedia" (RS) is not only a collection of facts, but also a unique picture of the era reflected in its pages. This is a printed heritage that opens up wide horizons of knowledge and research to the reader, echoing the deep winds of history and culture.