Answer:
Mongol Empire.
Step-by-step explanation:
Mongol Empire
2) The Mongol Empire was the largest contiguous empire the world has ever seen. The Mongol Empire covered 9.15 million square miles of land - more than 16% of the earth's landmass. The empire had 110 million people between 1270 and 1309 — more than 25% of the world's population.