The audiobook “The String of History” by Lev Gumilyov is difficult to call a textbook or a course—so vividly and colorfully is the material presented. The secret lies in Gumilyov’s ability to create a single picture out of fragments of psychology, ethnography, geography, and history, with elements of philosophy. His oratorical talent allows him to convey information to all age groups, so the lectures are still immensely popular. And the strings of history give birth to an amazing melody of events from the past.