"Great Soviet Encyclopedia" (ХБ) is a huge work that was created in the Soviet Union for the purpose of systematizing and summarizing all available scientific and cultural information. The first edition of the encyclopedia was published in 1926, and since then it has become an integral part of cultural reference for many generations. "Big Soviet Encyclopedia" (XB) covers a wide range of topics, from history and geography to science, technology and art. Each article in the encyclopedia contains detailed information that is supported by authoritative sources and in-depth analysis. The depth and breadth of knowledge contained in the "Great Soviet Encyclopedia" make this work an indispensable reference for all who seek to expand their horizons and improve their knowledge. "Big Soviet Encyclopedia" (ХБ) is not only a source of information, but also a symbol of the era, which reflected the cultural and scientific development of its time. This encyclopedia remains a cherished treasure for those who value knowledge and seek to understand the world around them.