"Great Soviet Encyclopedia (EO)" is the largest edition of the general encyclopedia in the USSR, which has become a symbol of broad scientific and cultural education. This encyclopedia contains a huge amount of knowledge from various fields: history, culture, science, technology, etc. Each article in EO contains reliable information and is presented with great accuracy, making it a reliable source of information. Many readers consider the Big Soviet Encyclopedia to be an important reference book in their home, helping to expand their knowledge and deepen their knowledge on a wide variety of topics.