"Great Soviet Encyclopedia" is an outstanding large-scale publication that was created in the USSR and became an important source of knowledge for millions of people. The encyclopedia includes thousands of articles from various fields of science, culture, history, geography and other spheres of life. At its core, the "Great Soviet Encyclopedia" had the goal of popularizing Soviet ideology, but at the same time it also contained objective scientific data and facts. This encyclopedia is not only a source of knowledge, but also an important historical document that reflects the ideological and cultural realities of its time. The "Great Soviet Encyclopedia" remains an important source for studying the history, culture and science of the past of the Soviet Union.