The book "Great Soviet Encyclopedia (YAN)" is one of the largest publications in the world, containing a wide range of knowledge from various fields of society and nature. It was published thanks to the efforts of numerous authors, experts and editors, who invested in their work unlimited encyclopedic depth and scope. The "Great Soviet Encyclopedia" contains huge volumes of information about history, culture, science, technology, geography and many other aspects of life. This publication is an important source of knowledge and information for everyone who is interested in the world around them. Due to the richness and accuracy of the information contained in the "Great Soviet Encyclopedia", the book is deservedly considered one of the most authoritative sources of encyclopedic data in the last century.