"Great Soviet Encyclopedia (B)" is a publication that is one of the world's largest encyclopedic sources of information, which was created in Soviet times. Its first issue was published in 1926, and the publication was completed in 1990. The encyclopedia contains a wide range of information from various fields of knowledge, from history and politics to science and technology. In addition, the "Great Soviet Encyclopedia" is considered a reliable source of knowledge about the history, culture and traditions of the Soviet Union and other countries of the world. This encyclopedia was an important part of the cultural and educational life of Soviet society, and its contents remain a valuable source of information for modern research."