Lev Gumilev managed to create a whole world in historical science. His ideas and discoveries have changed our understanding of the world. Gumilev's developments on passionarity and the history of the Eurasian space have only become more relevant over the years. This book presents not only memories of the historian, but also documents, speeches of opponents and associates of Gumilev. The book, dedicated to one of the brightest minds of the twentieth century, reveals the secrets of the creative workshop of Lev Gumilev