Mongols Timeline By Mr. Gerndt 1200 Temujin Unites Mongol Clans Period: 1200 to 1400 Mongols Timeline 1206 Temujin accepts title of Universal Leader Genghis Khan 1211 Conquest of Northern China Starts 1219 Conquest of Persia Begins 1221 Conquest of Persia Ends 1227 Genghis Khan Dies 1229 Genghis Son Ogedei took Power 1234 Conquest of Northern China is completed 1237 Conquest of Russia Begins 1241 Conquest of Russia Ends 1241 Ogedei Dies 1258 Baghdad Captured 1260 Kublai becomes the fifth Khan 1264 Conquest of Southern China Begins 1271 Kublai Khan Started the Yuan Dynasty in China 1279 Conquest of Southern China Ends 1294 Kublai Khan dies 1368 Yuan Dynasty Ends