A long time a ago, A baby was born and his name was Temujin, when he started getting older he became a tribal leader in 1206 the mongol people gave him a title Genghis Khan, the meaning Genghis Khan means "universal ruler".
Once Temujin got older he organized the diverse bands into a very powerful military machine that would sweep mercilessly across Asia in one of history's most impressive conquest.
Than after awhile, in 1212 Genghis Khan and the Mongols invaded northern china destroying more than over 90 cities and killing their inhabitants, when they turned west he destroyed an empire in Iran,then invaded southern Asia and 1215 he destroed china's capital
When Genghis Khan died around 1226, he had conquered much of central Asia. Four of his sons shared his vast empire, dividing it into four khanates, or regions, and expanded their rule into Europe and southern China.
China’s next great leader was Genghis Khan’s grandson, Kublai Khan. He rose to become leader of the Mongol Empire in 1264. Kublai Khan was determined to add to his empire by conquering all of southern China.
By 1271, he had succeeded, giving the Mongols control over most of China. That year he declared himself emperor, adopting the dynastic name Yuan and preparing to help his army meet new challenges.