Lev Nikolaevich Gumilev (1912-1992) is a brilliant historian, ethnographer, anthropologist, author of a unique concept of the historical process — the famous theory of 'passionarity'. Gumilev's works are fiercely controversial, but even opponents of the scientist recognize the depth of his research gift, the logic of presenting facts and the originality of the scientific view.This edition presents two fundamental works of the scientist, written at the end of his life. They represent the quintessence of thoughts and ideas concerning the interaction of Ancient Russia and the inhabitants of the Asian steppes. The book "From Russia to Russia" became the last work, the proofreading of which the scientist held in his hands. It is dedicated to the events of the formation of the Russian state from the princely era to its transformation into a world empire. The book "Ancient Russia and the Great Steppe" softens the opposition of the peoples of the East and Russia, which for some reason has become a stereotype of historical education.The publication will help the reader to see the distant events of the history of our Fatherland in a new way. The scientist closely examines many circumstances affecting the life of an individual nation, up to global climatic phenomena and even cosmic processes.