1

This question already has an answer here:

I read that the Mongol Empire conquered and unified China. My question is... how were the Mongols able to conquer so much when China's population almost certainly was larger during that time period? Was it because of the use of special tactics, technology, or due to other factors?

|improve this question

marked as duplicate by AllInOne, Rathony, Brasidas, Mark C. Wallace♦, Ken Graham Oct 4 '16 at 12:29

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.