The Secret History of the Mongols reports that Temüjin was born grasping a blood clot in his fist, a traditional sign that he was destined to become a great leader. He was the second son of his father Yesügei who was a Kiyad chief prominent in the Khamag Mongol confederation and an ally of Toghrul of the Keraite tribe.
In 1279, Kublai became the first Mongol to rule all of China when he conquered the last of the Song loyalists. ... Despite adopting and improving on many Chinese systems and ideals, Kublai and his Mongols did not want to become Chinese – they kept many of their own customs and remained unassimilated to Chinese life
