Mongols Timeline By Haylie R. 1206 Genghis Khan Born Period: 1211 to 1234 Conquest of Northern China Period: 1219 to 1221 Conquest of Persia 1227 Genghis Khan Death Period: 1237 to 1241 Conquest of Russia 1258 Capture of Baghdad Period: 1264 to 1279 Conquest of Southern China