Originally named Temujin (or "blacksmith"), Genghis Khan founded the largest what in history?

In 1279, Genghis Khan expanded the Mongol Empire beyond what the world has ever seen on land again. Comprising 16 percent of the entire world, the empire was the largest contiguous land empire at 9 million square miles. Only the British Empire, including its overseas territories and colonies, outranks it.

Last updated 4 years ago · 3.8K views · SOURCE