Mongol Empire

How does a modern person travel through time and become Genghis Khan, how to use modern knowledge to conquer the world. What kind of sparks will happen, and whether we will experience the same fate as Genghis. Is it to speed up the progress of the world, or to accept the arrangement of fate? How will Mongolia's iron hoofs ravage the European and American continents and plant Mongolian flags all over the world? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.