All results presented in the book are recent, new and published for the first time. The famous "ancient" - the Persian epic Shahnameh - is a grandiose and very popular source, which is believed to tell about the events in Persia, Greece, Byzantium in "deepest antiquity." Shahnameh brings us information about hundreds of characters and many important events. In this book, we show that this huge epic actually speaks of the events of the XII-XVIII centuries, and unfolding mainly in the Great Empire of the XIII-XVII centuries. Most of Shahnameh tells, as it turned out, about the Great Troubles in Russia of the 16th - early 17th centuries, that is, in the metropolis of the Great Russian Empire.