Mongols Timeline By rhiwilson Period: 900 to 1000 Stirrups are brought into Mongol territory. Period: 1100 to 1200 Temujin created the Mongols. 1200 Mongols united under Temujin. 1227 Temujin dies. Period: 1227 to 1279 The Mongols attack China. 1260 Kublai, Temujin's grandson, became the Great Khan and moved the capital of China to Bejing. 1271 Kublai Khan created the Yuan Dynasty. 1279 The Mongols conquered the Song Dynasty. 1279 The remnants of the Song Dynasty are destroyed. 1980 Joseph Fletcher Jr. rewrites the history of the Mongols using their sources. 1984 Joseph Fletcher Jr. dies.