"Great Soviet Encyclopedia (EE)" is a unique publication that can be considered a treasure trove of knowledge without exaggeration. First published in 1926, it covers a wide range of topics, from history and culture to science and technology. The expanded article on the Great Soviet Encyclopedia contains more than 100 volumes, and its author team included hundreds of specialists in various fields. The publication was published in Russian and Ukrainian and is of great importance for the cultural heritage of the former Soviet Union. Any reader, sharing or not sharing the socio-political views of the editors, cannot fail to recognize the enormous amount of work invested in this encyclopedia, which has become a symbol of the intellectual development of generations.