New book by A.T. Fomenko and G.V. Nosovsky consists entirely of material published for the first time and is devoted to the reconstruction of the era of the second half of the 14th century. In Russian history, this era was reflected as the baptism of Rus' by Vladimir the Saint, allegedly in the 10th century AD. e. In the history of “ancient” Rome - like the baptism of the Roman Empire by Emperor Constantine the Great allegedly in the 4th century AD. e. It turns out that in both cases we are talking about the same event. The baptism of the Great u003d “Mongolian” Empire, according to our reconstruction, took place under Dmitry Donskoy, at the end of the 14th century. Dmitry Donskoy is also known to us as Constantine the Great of the Roman chronicles. The baptism of the Empire was preceded by the great Battle of Kulikovo in 1380. This is also the famous battle between Constantine the Great and Maxentius. The book contains two new and very interesting astronomical dating of ancient zodiacs. The first is the dating of the horoscope discovered by the authors on the famous carpet from Bayeux. The second dating refers to the horoscope discovered by the authors on the golden Copenhagen horn. Appendix 2 lists the chronological correspondence between the main empires of the “distant past” (in the Scaligerian version) and the Great u003d “Mongolian” Empire of the XIV–XVI centuries. In particular, it follows that “ancient” Rome is a phantom reflection of the Great u003d “Mongol” Empire of the 14th–16th centuries. The book is intended for a wide range of readers interested in the application of natural scientific methods to chronology, world history and the history of Rus'.< /p>