"Bolsha Soviet Encyclopedia" (BSE) is a classic reference book consisting of many volumes and covering a wide range of knowledge from various fields of science, culture, history and technology. Issued between 1926 and 1947, BSE reflects the cultural and intellectual spirit of the socialist period of the Soviet Union. Each word covered in the encyclopedia was highly academically researched and substantiated, providing the reader with complete and comprehensive information. The "Great Soviet Encyclopedia" can be recognized as a symbol of the all-pervading knowledge and culture of Soviet society.