The name of Immanuel Velikovsky, we can say with confidence, is practically unknown to an ordinary Russian reader; nor can we find it in our encyclopedias of recent times. This wonderful man, a doctor by education and a scientist by vocation, devoted four decades of his life to science - astronomy, geology, paleontology, history, psychoanalysis. The result of his many years of hard work was a series of scientific works on ancient history - "Worlds in Clashes," "Centuries in Chaos," "Ramses II and His Time," "Peoples of the Sea," etc. The book tells about the difficult life and creative path of this interesting person - a doctor, scientist, writer - a native of the Russian Empire.