I need to do little correction (I have been studied Mongolian history for 13 years). Genghis Khaan is a title. Because Mongolians used to give titles to their Khans. His real name is Temuujin (not Tiemuzhen). I think, Mongolia is not ethnic minority group, it is a nation. Genghis means 'Oceanic'. Moreover, Khubilai just moved his capital city from Kharkhorum to nowadays Beijing (because he inherited such a big land it was his desire to move his capital city to anywhere. Beijing was the biggest city in that time). I agree he somehow liked chinese culture because he had chinese tutor.