'''2.'''The Mongols conquered the greatest area of contiguous land in history, beginning under [[Genghis Khan]], who reigned from 1162-1227. In 1237, the Mongols successfully invaded [[Russia]] in the wintertime, the only conquerors to ever complete this feat. In 1270 the Mongols established a dynasty in [[China]]. However, while the Mongols were great fighters, they could not administer their empire as effectively as Rome or the [[Han Dynasty|Han Empire]], and by the 1400s they were seriously declining. | '''2.'''The Mongols conquered the greatest area of contiguous land in history, beginning under [[Genghis Khan]], who reigned from 1162-1227. In 1237, the Mongols successfully invaded [[Russia]] in the wintertime, the only conquerors to ever complete this feat. In 1270 the Mongols established a dynasty in [[China]]. However, while the Mongols were great fighters, they could not administer their empire as effectively as Rome or the [[Han Dynasty|Han Empire]], and by the 1400s they were seriously declining. |