Numerous scientific works and museum exhibitions convince us that almost everything is known about the history of mankind and historians have an answer to almost any question. However, if we look more closely into the distant past, we will find many contradictions and inconsistencies there. Why, for example, did the painters of the Middle Ages depict ancient characters as their contemporaries, in clothes corresponding to the time of the artist's life?And how ancient warriors could hit their enemies with bronze swords, if bronze is a fragile material and a good cutting blade made of bronze difficult to obtain?And why are steel weapons found in the excavations of the tombs of Egyptian pharaohs, if Ancient Egypt did not know metal? Or did he know? And how, after all, to explain the steel chisel that was found in the pyramid of Khufu, built in 2900 BC? e.?A new book in the series "History on the fingers" will reveal to the reader the secrets of ancient times.