"Great Soviet Encyclopedia" (SA) is a publication that defined the intellectual world of Soviet society for decades. It was this encyclopedia that was a refuge for everyone who sought knowledge in the most diverse fields of science, technology, culture and history. Covering thousands of articles, illustrations and maps, it has become an integral part of home libraries and school classrooms. The "Great Soviet Encyclopedia" was not only a source of knowledge, but also a reflection of the ideology and scientific approach of the Soviet Union in the second half of the 20th century.