Answer:The phrase “city on a hill” refers to a community that others will look up to. John Winthrop used this phrase to describe the Massachusetts Bay colony, which he believed would become a shining example of Puritan perfection.
In a short term: the Mongols would have have the control over the lands.
In a long tern: either the European powers would not have conquered the other continents during the colonial time, or if the Mongols had done the same, possibly in the Americas and Africa Mongolian would be spoken today.